# Optionals IAS Mains Mathematics: Questions 1 of 283

### Describe in Detail

Essay▾If . Then find –

## Explanation

- Here, from question given information is,
- As we know,
- Therefore from equation (1) ,
- Now,
- Substitute in equation (2) ,

If . Then find –

- Here, from question given information is,
- As we know,
- Therefore from equation (1) ,
- Now,
- Substitute in equation (2) ,