TS EAMCET · Maths · Inverse Trigonometric Functions
If \(\sin ^{-1}\left(\frac{12}{x}\right)+\sin ^{-1}\left(\frac{5}{x}\right)=\frac{\pi}{2}\), then \(x=\)
- A 5
- B 7
- C 13
- D 17
Answer & Solution
Correct Answer
(C) 13
Step-by-step Solution
Detailed explanation
We have, \(\sin ^{-1}\left(\frac{12}{x}\right)+\sin ^{-1}\left(\frac{5}{x}\right)=\frac{\pi}{2}\) \(\Rightarrow \quad \sin ^{-1}\left(\frac{12}{x}\right)=\frac{\pi}{2}-\sin ^{-1}\left(\frac{5}{x}\right)\)…
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