Question

If x+  1/x = 2cosθ, then the value of x³+  1/x³ is

A 2cos2θ
B 2cos3θ
C 2sin2θ
D 2sin2θ
Practice Next

Relevant for Exams:

Hey! Ask a query

🎓
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
  • 200 Questions with Detailed Solutions
  • Section-wise Coverage (GA, English, Quant & Reasoning)