−23
−53
53
23
Correct answer is A
x−3(1−x)(x+2) = p1−x + Qx+2
Multiply both sides by LCM i.e. (1 - x(x + 2))
∴ x - 3 = p(x + 2) + Q(1 - x)
When x = +1
(+1) - 3 = p(+1 + 2) + Q(1 - 1)
-2 = 3p + 0(Q)
3p = -2
∴ p = −23
If a fair coin is tossed 3 times, what is the probability of getting at least two heads?...
Which of the following is a factor of 2 - x - x2?...
If X = {all the perfect squares less than 40} Y = {all the odd numbers fro, 1 to 15}. Find X ∩ ...
Find the value of k if k√3+√2 = k√3−2...
Find the LCM of 23 x 3 x 52, 2 x 32 x 5 and 23 x 33 x 5...
If T=2π√lg, make g the subject of the formula ...
Factorize completely: 6ax - 12by - 9ay + 8bx ...
Evaluate: 0.21×0.072×0.000540.006×1.68×0.063 ...
If p = (y : 2y ≥ 6) and Q = (y : y -3 ≥ 4), where y is an integer, find p∩Q...