Question:medium

If $\pi/2 < x < \pi$ and $\tan x = -3/4$, then $\cos x = ?$

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ASTC rule: All positive in Q1, Sin in Q2, Tan in Q3, Cos in Q4.
Updated On: Jun 26, 2026
  • -3/5
  • 3/5
  • 4/5
  • -4/5
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The Correct Option is D

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