 # CBSE Class 12 CBSE Class 12 Maths

Topic Replies Activity
Let A = [ -2 5 3 4 ] B = [ -2 5 3 4 ] c = [ -2 5 3 4 ] . Find each of the following 2 April 12, 2019
The number of all possible matrices of order 3 x 3 with each entry 0 or 1 is: 2 April 12, 2019
Which of the given values of [ 3x + 7 5 y + 1 2 - 3x] = [ 0 y - 2 8 4 ] 2 April 12, 2019
Tan-1 (x/y) - tan-1 (x - y/x + y) is equal to: 2 April 12, 2019
X then x is equal to: 2 April 12, 2019
Sin (tan-1 x), |x| < 1 is equal to: 2 April 12, 2019
Solve the equation: tan-1(1 - x/1 + x) = 1/2 tan-1 x, (x >0) 2 April 12, 2019
Solve the equation: 2tan-1(cos x) = tan-1(2cosec x) 2 April 12, 2019
Prove that: 9π/8 - 9/4 sin-1 1/3 = 9/4 sin-1 2√2/3 2 April 12, 2019
Prove that: tan-1 (√1 + x - √1 - x/√1 + x + √1 - x) = π/4 - 1/2cos-1 x, -1/√2 ≤ x ≤ 1 2 April 12, 2019
Prove that: cot-1 (√1 + sin x + √1 - sin x /√1 + sin x - √ 1 - sin x ) = x/2, x ∈ (0, π/4) 2 April 12, 2019
Prove that: tan-1 √x = 1/2cos-1(1 - x /1 + x), x ∈ [0,1] 2 April 12, 2019
Prove that: tan-1 1/5 + tan-1 1/7 + tan-1 1/3 + tan-1 1/8 = π/4 2 April 12, 2019
Prove that: tan-1 63/16 = sin-1 5/13 + cos-1 3/5 2 April 12, 2019
Prove that: cos-1 12/13 + sin-1 3/5 = sin-1 56/65 2 April 12, 2019
Prove that: cos-1 4/5 + cos-1 12/12 = cos-1 33/65 2 April 12, 2019
Prove that: sin-1 8/17 + sin-1 3/5 = tan -1 77/36 2 April 12, 2019
Prove that: 2sin-1 3/5 = tan-1 24/7 2 April 12, 2019
Find the value of tan-1(tan7π/6) 2 April 12, 2019
Find the value of cos-1(cos 13π/6) 2 April 12, 2019
Sin[π/3 - sin-1 (-1/2) ] is equal to: 2 April 12, 2019
Cos-1 (cos7π/6) is equal to: 2 April 12, 2019
Find the values of tan(sin-1 3/5 + cot-1 3/2) 2 April 12, 2019
Find the values of each of the expressions tan-1(tan 3π/4) 2 April 12, 2019
Find the values of the expressions sin-1(sin 2π/3) 2 April 12, 2019
If tan-1 x - 1/x - 2 + tan-1 x + 1 / x + 2 = π/4, then find the value of x 2 April 12, 2019
If sin( sin-1 1/5 + cos-1 x) = 1 , then find the value of x 2 April 12, 2019
Find the values of tan1/2[sin-1 2x/1+x2 + cos-1 1-y2/1+y2], |x| < 1, y > 0 and xy < 1 2 April 12, 2019
Find the values of cot(tan-1 a = cot-1 a) 2 April 12, 2019
Find the values of each of the following: tan-1[2cos(2sin-1 1/2)] 2 April 12, 2019