1)

If 3x+1(x5)(x3)dx =

5(x3)dx+Bx5dx, then the value of B is  


A) 3

B) 4

C) 6

D) 8

Answer:

Option D

Explanation:

We have,

3x+1(x3)(x5) = 5(x3)+B(x5)

3x+1 = -5(x-5) + B(x-3)

Put x = 5

3(5)+1 + B(5-3)

16 = 2B or B = 8