In the expansion of , if the term independent of x is . then k is equal to:
- (A)84✓ Correct
- (B)78
- (C)168
- (D)198
Answer: (A)
Solution
The general term of is . The power of is , which is zero when . The coefficient is . Setting this equal to , .
JEE Main · 2026 · 04 Apr 2026 · Shift 2 · Single correct option