maths ONLINE TEST 0% 11th Maths One Mark – Full (Based on Reduced Syllabus) Wish you all the Best ! -St. Joseph Study Centre 1 / 84 If f (x) = x + 2, then f ‘(f (x)) at x = 4 is 4 5 1 8 2 / 84 The function f : R → R is defined by f(x) = sinx + cos x is? both odd function and even function an odd function neither an odd function nor an even function an even function 3 / 84 The value of (1/2!) + (1/4!) + (1/6!) + ….. Is? e² – 1 / 2e (e -1)² / 2e (e + 1)² / 2e e² + 1 / 2e 4 / 84 If a and b are the real roots of the equation x² − kx + c = 0, then the distance between the points (a, 0) and (b, 0) is? √(k − 8c) √(k² − 4c) √(4k² − c) √(4c − k²) 5 / 84 The range of the function 1 / 1-2 sin x is? (−∞,−1] ∪ [1/3 , ∞) (−∞,−1) ∪ (1/3 , ∞) [-1, 1/3] (-1, 1/3) 6 / 84 The sum of the digits at the 10th place of all numbers formed with the help of 2, 4, 5, 7 taken all at a time is 432 36 18 108 7 / 84 Let X = {1, 2, 3, 4}, Y = {a, b, c, d} and f = {(1, a), (4, b), (2, c), (3, d), (2, d)}. Then f is? an onto function not a function a function which is not one-to-one an one-to-one function 8 / 84 The value of the series (1/2) + (7/4) + (13/8) + (19/16) + …. is ? 4 14 6 7 9 / 84 The number of points in R in which the function f (x) =| x −1| + | x − 3| +sin x is not differentiable, is 2 4 1 3 10 / 84 Let R be the universal relation on a set X with more than one element. Then R is? not symmetric none of the above not reflexive transitive 11 / 84 The coordinates of the four vertices of a quadrilateral are (-2,4), (-1,2), (1,2) and (2,4)taken in order. The equation of the line passing through the vertex(-1,2) and dividing the quadrilateral in the equal areas is? x +1 = 0 x + y + 3 = 0 x – y + 3 = 0 x+ y = 1 12 / 84 The line (p + 2q)x + (p – 3q)y = p – q for different values of p and q passes through the point? (2/5, 2/5) (3/5, 3/5) (2/5, 3/5) (3/2, 5/2) 13 / 84 The length of ┴ from the origin to the line x/3 – y/4 = 1 is? -5/12 5/12 11/5 12/5 14 / 84 cos 1⁰ + cos2⁰ + cos3⁰ +……..+ cos179⁰ =? 1 zero 89 -1 15 / 84 Given that x, y and b are real numbers x < y,b > 0, then? (x/b) ≥ (y/b) xb ≤ yb xb < yb xb > yb 16 / 84 If |x + 2| ≤ 9, then x belongs to? [−11, 7] (−11, 7) (−∞,−7) (−∞,−7) ∪ [11,∞) 17 / 84 Let X = {1, 2, 3, 4} and R = {(1, 1), (1, 2), (1, 3), (2, 2), (3, 3), (2, 1), (3, 1), (1, 4), (4, 1)}. Then R is? equivalence reflexive transitive symmetric 18 / 84 If the lines represented by the equation 6x² + 41xy – 7y² = 0 make angles α and β with x- axis, then tan α tan β =? 7/6 -6/7 6/7 -7/6 19 / 84 The value of log₃ 1/81 is? -2 -9 -4 -8 20 / 84 If pv = 81, then dp/dv at v = 9 is 1 2 -2 -1 21 / 84 If π < 2θ < 3π/2, then √(2√(2 + 2 cos 4θ equals to? -2 sinθ 2 sinθ 2 cosθ – 2 cosθ 22 / 84 The number of five digit telephone numbers having at least one of their digits repeated is 10000 90000 69760 30240 23 / 84 If A = {(x, y) : y = eˣ, x ∈ R} and B = {(x, y) : y = e⁻ˣ, x ∈ R} then n(A ∩ B) is? Zero 1 Infinity 2 24 / 84 The maximum value of 4 sin² x + 3cos² x + sin x/2 + cos x/2 is? 9 3 + √2 4 + √2 4 25 / 84 The number of relations on a set containing 3 elements is? 81 512 9 1024 26 / 84 The y-intercept of the straight line passing through (1,3) and perpendicular to 2x – 3y + 1= 0 is? 9/2 2/3 2/9 3/2 27 / 84 If 3 is the logarithm of 343, then the base is? 5 9 6 7 28 / 84 The equation of the line with slope 2 and the length of the perpendicular from the origin equal to √5 is? 2x – y = 5 2x – y = √5 x – 2y = √5 x – 2y – 5 = 0 29 / 84 The sum of an infinite GP is 18. If the first term is 6, the common ratio is? 1/6 1/3 2/3 3/4 30 / 84 Let f : R → R be defined by f(x) = 1 − |x|. Then the range of f is? (1,∞) R (−1,∞) (−∞, 1] 31 / 84 If the two straight lines x + (2k – 7)y + 3=0 and 3kx + 9y – 5 = 0 are perpendicular then the value of k is? k = 2/3 k = 3 k = 3/2 k = 1/3 32 / 84 The value of log√2 512 is? 12 9 16 18 33 / 84 Which of the following is not true ? sin θ = -3/4 sec θ = 1/4 cos θ = -1 tan θ = 25 34 / 84 The solution set of the following inequality |x − 1| ≥ |x − 3| is ? (−∞, 2) [2,∞) (0, 2) [0, 2] 35 / 84 The number of students who take both the subjects Mathematics and Chemistry is 70. This represents 10% of the enrollment in Mathematics and 14% of the enrollment in Chemistry. How many students take at least one of these two subjects is 1130 insufficient data 1100 1120 36 / 84 If kx / (x+2) (x-1) = 2/x+2 + 1/ x-1, then the value of k is? 3 1 4 2 37 / 84 Which of the following point lie on the locus of 3x² + 3y² – 8x – 12y + 17=0? (-2,3) (0,-1) (0,0) (1,2) 38 / 84 If |x – 2| / x – 2 ≥ 0, then x belongs to? [2,∞) (2,∞) (−∞, 2) (−2,∞) 39 / 84 The point on the line 2x – 3y = 5 is equidistance from (1,2) and (3, 4) is? (-2, 3) (4, 1) (1, -1) (7, 3) 40 / 84 If 8 and 2 are the roots of x² +ax+c = 0 and 3, 3 are the roots of x² +dx+b = 0, then the roots of the equation x² + ax + b = 0 are? 9, 1 -1, 2 -1, 1 1, 2 41 / 84 The relation R defined on a set A = {0,−1, 1, 2} by xRy if |x² + y² | ≤ 2, then which one of the following is true? R⁻¹ = {(0, 0), (0,−1), (0, 1), (−1, 0), (1, 0)} R = {(0, 0), (0,−1), (0, 1), (−1, 0), (−1, 1), (1, 2), (1, 0)} Range of R is {0,−1, 1} Domain of R is {0,−1, 1, 2} 42 / 84 The slope of the line which makes an angle 45⁰ with the line 3x – y = -5 are? 2, -1/2 1/2, -2 1, -1 1, 1/2 43 / 84 If the function f : [−3, 3] → S defined by f(x) = x² is onto, then S is? R [−9, 9] [−3, 3] [0, 9] 44 / 84 Let R be the set of all real numbers. Consider the following subsets of the plane R × R: S = {(x, y) : y = x + 1 and 0 < x < 2} and T = {(x, y) : x − y is an integer } Then which of the following is true? Neither S nor T is an equivalence relation T is an equivalence relation but S is not an equivalence relation S is an equivalence relation but T is not an equivalence relation Both S and T are equivalence relation 45 / 84 The coefficient of x⁵ in the series e⁻²ˣ is? 4/15 3/2 2/3 -4/15 46 / 84 Find a so that the sum and product of the roots of the equation 2x² + (a − 3)x + 3a − 5 = 0 are equal is? zero 4 1 2 47 / 84 Straight line joining the points (2, 3) and (-1 ,4) passes through the point (α, β ) if? 3α + β = 11 α + 3β = 11 3α + β = 9 α + 2β = 7 48 / 84 Let A and B be subsets of the universal set N, the set of natural numbers. Then A’ ∪[(A∩B)∪B’] is? N B A’ A 49 / 84 The nᵗᵸ term of the sequence 1/2, 3/4, 7/8, 15/16, ….is? 2 ⁿ ⁻ ˡ 2 ⁻ ⁿ + n – 1 1 – 2 ⁻ ⁿ 2ⁿ – n – 1 50 / 84 The sum up to n terms of the series √2 + √8 + √18 + √32 + ….. is? 2n (n + 1) n(n + 1) / √2 1 n(n + 1) / 2 51 / 84 If A and B are two matrices such that A + B and AB are both defined, then A = B A and B are square matrices of same order Number of columns of A is equal to the number of rows of B A and B are two matrices not necessarily of same order 52 / 84 The area of the triangle formed by the lines x² – 4y² = 0 and x = a is? (2/√3)a² 2a² (‘√3/2) a² (1/2) a² 53 / 84 If log√x 0.25 = 4, then the value of x is? 1.25 1.5 2.5 0.5 54 / 84 Equation of the straight line that forms an isosceles triangle with coordinate axes in the I-quadrant with perimeter 4 +2√2 is? x + y – 2 = 0 x + y – √2 = 0 x + y + √2 = 0 x + y + 2 = 0 55 / 84 (1 + cos π / 8) (1 + cos 3π / 8) (1 + cos 5π / 8) (1 + cos 7π / 8) = 1 /√2 1 / √3 1 / 8 1 / 2 56 / 84 If tan 40⁰ = λ, then (tan 140⁰ – tan 130⁰ / 1 + tan 140⁰ tan 130⁰) = 1 + λ² / 2λ 1 – λ² / λ 1 + λ² / λ 1 – λ² / 2λ 57 / 84 Which of the following equation is the locus of (at²; 2at)? x²/a² + y²/b² = 1 y² = 4ax x²/a² – y²/b² = 1 x² + y² = a² 58 / 84 The number of solutions of x² + |x − 1| = 1 is ? 2 zero 3 1 59 / 84 One of the equation of the lines given by x² + 2xy cot θ – y² = 0 is? x cos θ + y (sin θ + 1) = 0 x – y cot θ = 0 x sin θ + y ( cos θ + 1) = 0 x + y tan θ = 0 60 / 84 If A = {(x, y) : y = sinx, x ∈ R} and B = {(x, y) : y = cos x, x ∈ R} then A ∩ B contains? only one element no element infinitely many elements cannot be determined 61 / 84 The rule f(x) = x² is a bijection if the domain and the co-domain are given by? (0,∞),R R,R [0,∞), [0,∞) R, (0,∞) 62 / 84 If the point(8,-5) lies on the locus x²/16 – y²/25 = k, then the value of k is? 3 1 zero 2 63 / 84 The value of 1 – 1/2 (2/3) + 1/3 (2/3)² – 1/4 (2/3)³ + ….. is ? 5/3 log (5/3) log (5/3) 2/3 log (2/3) 3/2 log (5/3) 64 / 84 The function f : [0, 2π] → [−1, 1] defined by f(x) = sinx is? onto cannot be defined bijection one-to-one 65 / 84 If a and b are the roots of the equation x² − kx + 16 = 0 and satisfy a² + b² = 32, then the value of k is? -8, 8 10 6 -8 66 / 84 For non-empty sets A and B, if A ⊂ B then (A × B) ∩ (B × A) is equal to A × A A ∩ B none of these B × B 67 / 84 If a vertex of a square is at the origin and its one side lies along the line 4x + 3y – 20 =0, then the area of the square is? 4sq.units 20sq.units 25sq.units 16sq.units 68 / 84 The value of logₐ b logb c logc a is? 2 1 4 3 69 / 84 The range of the function f(x) = | [x] − x|, x ∈ R is? (0, 1) [0, 1) [0, 1] [0,∞) 70 / 84 If cos 28⁰ + sin 28⁰ = k³,then cos 17⁰ is equal to? k³ / √2 -k³ / √2 ± k³ / √2 -k³ / √3 71 / 84 The equation of the locus of the point whose distance from y-axis is half the distance from origin is? 3x² + y² = 0 x² -3y² = 0 x² + 3y² = 0 3x² -y² = 0 72 / 84 If one of the lines given by 6x² – xy + 4cy² = 0 is 3x + 4y = 0;, then c equals to? 1 3 -3 -1 73 / 84 Straight line joining the points (2, 3) and (-1, 4) passes through the point (α, β) if α + 3β = 11 3α + β = 9 α + 2β = 7 3α + 3β = 11 74 / 84 The solution of 5x − 1 < 24 and 5x + 1 > −24 is? (4, 5) (−5, 4) (−5,−4) (−5, 5) 75 / 84 If y = mx + c and f (0) = f ‘(0) =1, then f (2) is -3 3 2 1 76 / 84 The intercepts of the perpendicular bisector of the line segment joining(1,2)and(3,4)with coordinate axes are? 5, -5 5, 5 5, -4 5, 3 77 / 84 1 / cos 80⁰ – √3/sin 80⁰ = ? 4 2 √3 √2 78 / 84 The image of the point(2,3)in the line y = -x is? (3, 2) (-3, 2) (-2, -3) (-3, -2) 79 / 84 1 + 3 + 5 + 7 +……. + 17 is equal to 101 61 81 71 80 / 84 If A and B are symmetric matrices of order n, where (A ≠ B), then A + B is a zero matrix A + B is a diagonal matrix A + B is symmetric A + B is skew-symmetric 81 / 84 The number of constant functions from a set containing m elements to a set containing n elements is? n mn m m + n 82 / 84 If a is the arithmetic mean and g is the geometric mean of two numbers, then a ≥ g a ≤ g a = g a > g 83 / 84 The derivative of f (x) = x | x | at x = −3 is 6 Zero does not exist -6 84 / 84 The equation whose roots are numerically equal but opposite in sign to the roots of 3x² − 5x − 7 = 0 is? 3x² + x − 7 3x² − 5x+7 = 0 3x²+ 5x − 7 = 0 3x² − 5x − 7 = 0 Your score is Note: Once you start the test, you are not allowed to go back. Results won’t be generated if you quit the test. Complete the test within the given time. Once the time is over, the test will be submitted automatically. 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