Question

If sin x + cos x = 7/5, find sin⁴ x + cos⁴ x:

A 49/125
B 229/25
C 31/25
D 337/625
Practice Next

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)