Recently Active Mathematics Questions

Y= ex+e-x/ex-e-x p.t. dy/dx=1-y2 ...

Let n(A) = n. Then the number of all relations on A is a) {2^n} b) {2^{(n)!}} c) {2^{{n^2}}} d) None of these ...

The value of a is coming as -1 and b as 1/2. But the problem is that when they are placed in the equation the result is not zero. ...

The inverse of the function f(x)=frac{{{e}^{x}}-{{e}^{-x}}}{{{e}^{x}}+{e}^{-x}}}+2 is given by a) {{log }_{e}}{{left( frac{x-2}{x-1} ight)}^{frac{1}{2}}} b) {{log }_{e}}{{left( frac{x-1}{3-x} ight)}^{frac{1}{2}}} c) {{log }_{ ...

If x4 + 1/x4 = 322, find x3 - 1/x3 = 64 76 96 84 ...

Given that a, b, and c are all positive, and that ab = 21, ac = 18, and bc = 42, find a + b + c. ...

If f :N→N such that f(f(x))=3x; Then find f(2013) ...

Let R = {(1, 3), (2, 2), (3, 2)} and S = {(2, 1), (3, 2), (2, 3)} be two relations on set A = {1, 2, 3}. Then RoS = a) {(1, 3), (2, 2), (3, 2), (2, 1), (2, 3)} b) {(3, 2), (1, 3)} c) {(2, 3), (3, 2), (2, 2)} d) {(2, 3), (3, 2 ...

R is a relation from {11, 12, 13} to {8, 10, 12} defined by y = x - 3 . Then {R^{ - 1}} is a) {(8, 11), (10, 13)} b) {(11, 18), (13, 10)} c) {(10, 13), (8, 11)} d) None of these ...

9)Which of the following nos. is between 0.1123476 and 0.1123571? a.0.112523 b.0.1123473 c.0.1123473 d.Both a and b Correct Answer c Your Score -1 How can this be possible? Please verify the option. ...

9)Which of the following nos. is between 0.1123476 and 0.1123571? a.0.112523 b.0.1123473 c.0.1123473 d.Both a and b Correct Answer c Your Score -1 How can this be possible? Please verify the option. ...

If varphi (x) = {a^x}, then {{ varphi (p)} ^3} is equal to a) phi(3p) b) 3varphi (p) c) 6phi(p) d) 2phi(p) ...

If then f(x),f(y) - frac{1}{2}[fleft({frac{x}{y}} ight) + f(xy)] = a) frac{1}{2} b) 2 c) 0 d) 1 ...

If the HCF and LCM of 2 numbers are reciprocal of each other, then the product of the numbers equals a) 0 b) 1 c) -1 d) 2 ...

Let f(x)=(1+{{b}^{2}}){{x}^{2}}+2bx+1 and m(b) the minimum value of f(x) for a given b. As b varies, the range of m(b) is a) [0,,1] b) left( 0,left. frac{1}{2} ight] ight. c) left[ frac{1}{2},,,1 ight] d) (0,,1] ...

Which of the following nos. is between 0.1123476 and 0.1123571? 0.112523 0.1123473 0.1123473 Both a and b Your Answer Not Attempted Correct Answer c how can 0.112473 lie between the given nos.? and please give the right answe ...

Which of the following nos. is between 0.1123476 and 0.1123571? 0.112523 0.1123473 0.1123473 Both a and b Your Answer Not Attempted Correct Answer c since the option b and c are same which will the right answer?and what will ...

The sum of the three sides of a triangle ABC is 10 cm. Angle B = 60 degrees Angle C = 45 degrees. How can we construct it? Please respond with all steps in detail. Thanks to the person who can help me in advance. Thanks, Bye, ...

f(x)=cos sqrt{x}, correct statement is a) f(x) is periodic & its period =sqrt{2}pi b) f(x) is periodic & its period =4{{pi }^{2}} c) f(x) is periodic & its period =sqrt{pi } d) f(x) is not periodic ...

The circumference of the front wheel of a cart is 30 ft long and that of the back wheel is 36 ft long. What is the distance traveled by the cart, when the front wheel has done five more revolutions than the rear wheel? 750Ï€ ...

Lim Sin.Log x2 x→0 Find the value using L hospital rule. ...

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Prove the formula for vector triple product.. ...

1 + 1+2/1! + 1+2+3/2! + 1+2+3+4/3! + ..... ∞ = (a) 0 (b) 1 (c) 7e/2 (d) 2e Brahmastra - Exponential and logarithmic series Q No.5 ...

If cos(α-β)+cos(β-γ)+cos(γ-α)= -3/2 , then p.t. → cosα +cosβ +cosγ =sinα +sinβ +sinγ =0 . ...

Σ 1/1+xa-b+xa-c =? (A) 1 (B)-1 (C) 0 (D) N.O.T. ...

If one root of the equation ax2+bx+c=0 is the square of the other, then a(c-b)3=cX, where X is (a) a3+b3 (b) (a-b)3 (c) a3-b3 (d) N.O.T Please show the method .. ...

If tan(inverse)(x+2/x)-tan(inverse)4/x-tan(inverse)(x-2/x)=0 then x=............ y=........... (M.L.Khanna Page 464 Problem No.37a) ...

If the roots of the equation x2-bx/ax-c = m-1/m+1 are equal but opposite in sign, then the value of of m will be (a) a-b/a+b (b) b-a/a+b (c) a+b/a-b (d) a+b/b-a Brahmastra, Quadratic Equations Q No. 10. ...

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