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NDA 2011
Exam
NDA
Year
2011
Subject
Mathematics
Chapter
Inverse Trigonometric Functions

NDA 2011 · Mathematics · Inverse Trigonometric Functions

If ( ^ -1 (1)/(5)+ ^ -1 x)=1 then what is x equal to?

If sin⁡(sin⁡−115+cos⁡−1x)=1thenwhatis\sin \left(\sin ^{-1} \frac{1}{5}+\cos ^{-1} x\right)=1 then what isx$ equal to?

Options

  1. A0
  2. B1
  3. C45\frac{4}{5}
  4. D15\frac{1}{5}

Correct answer

D. 15\frac{1}{5}

Step-by-step solution

The correct answer is option (D).
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