Mathematics · Inverse Trigonometric Functions
If tan-1(x) + tan-1(y) = 4π5, then cot-1(x) + cot-1(y) equals:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1π5✓
- 22π5
- 33π5
- 4π
Correct answer
π5
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