AP EAMCET · Maths · Trigonometric Ratios & Identities
If \(\cos \theta=\frac{-3}{5}\) and \(\theta\) does not lie in second quadrant, then \(\tan \frac{\theta}{2}=\)
- A \(2\)
- B \(1\)
- C \(-2\)
- D \(-1\)
Answer & Solution
Correct Answer
(C) \(-2\)
Step-by-step Solution
Detailed explanation
\( \sin^2 \theta = 1 - \left(\frac{-3}{5}\right)^2 = 1 - \frac{9}{25} = \frac{16}{25} \) Since \( \theta \) does not lie in the second quadrant and \( \cos \theta…
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