Question

The total number of terms in the expansion of (x + a)⁵¹ – (x – a)⁵¹ after simplification is ______.

Options

• 102

• 25

• 26

• None of these

Answer 1

The total number of terms in the expansion of (x + a)⁵¹ – (x – a)⁵¹ after simplification is 26.

Explanation:

Since the total number of terms are 52 of which 26 terms get cancelled.