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