JEE Main Mathematics question
Let the coefficients of third, fourth and fifth terms in the expansion of , , be in the ratio . Then the term independent of in the expansion, is equal to
Answer: 3.75
Solution
The coefficients are , so and , i.e. and . Dividing, gives , and then (check:
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account