NCERT Class 11 Mathematics Solutions: Chapter 8 – Binomial Theorem Miscellaneous Exercise Part 4 (For CBSE, ICSE, IAS, NET, NRA 2022)

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1. Evaluate:

Answer:

Firstly, the expression is simplified by using Binomial Theorem. This can be done as

Putting

2. Find the value of

Firstly, the expression is simplified by using Binomial Theorem. This can be done as

Putting