1
NDA Mathematics 14th September 2025
MCQ (Single Correct Answer)
+2.5
-0.833
What is$\cot ^{-1}9+\>\mathrm{cosec}\>{}^{-1}\left(\frac{\sqrt{41}}{4}\right)$
equal to?
2
NDA Mathematics 14th September 2025
MCQ (Single Correct Answer)
+2.5
-0.833
What is the value of $\tan \left[\frac{1}{2}\sec ^{-1}\left(\frac{2}{\sqrt{3}}\right)\right]?$
3
NDA Mathematics 13 April 2025
MCQ (Single Correct Answer)
+2.5
-0.833
If k is a root of , then what is equal to?
4
NDA Mathematics 13 April 2025
MCQ (Single Correct Answer)
+2.5
-0.833
If , then what is the value of k?
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