Mathematics · Trigonometry
If sin A + cos A = m and sin3 A + cos3 A = n, then which of the following relations is correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1m3 + 3m + 2n = 0
- 2n3 - 3n + 2m = 0
- 3m3 - 3m + n = 0
- 4m3 - 3m + 2n = 0✓
Correct answer
m3 - 3m + 2n = 0
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