Question no 56 and 57

# Doubt from integration

**abhijit_2020**#1

**Mahesh_2019**#2

57

Put a+b-x (1-x)

Then write e wala part in reciprocal

Multiply denominator by e wala part

Then and and 1st and last eqn

**abhijit_2020**#7

Question no 14 I did but got wrong answer the answer is 1 but I got in fraction uploading my solution too correct me where I am wrong

**Tanmay_1**#8

How -98 in answer is beyond understanding...your answer is correct so far i understand calculus...what is the source of question...is there any answer with explanation...if yes pls upload

**abhijit_2020**#12

But answer says A is one and it's a numerical based question I think the rhs should be -1/9A and -1/9B then all is clear then our solution too satisfies the question