Question

If f((x - 4)/(x + 2)) = 2x + 1, (x ∈ R - {1, - 2}), then ∫f(x)dx is equal to (where C is a constant of integration) 

(A) 12log_e|1 – x| + 3x + C 

(B) −12log_e|1 – x| −3x + C 

(C) 12log_e|1 – x| −3x + C 

(D) −12log_e|1 – x| + 3x + C

Answer 1

Answer is (B) −12log_e|1 – x| −3x + C