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Question: Answered & Verified by Expert
If \( \sin ^{-1} \sin 17+\cos ^{-1} \cos 27+\tan ^{-1} \tan 37 \) is equal to \( k-\lambda \pi \), then the value of \( k+\lambda \) is
MathematicsInverse Trigonometric FunctionsJEE Main
Solution:
2583 Upvotes Verified Answer
The correct answer is: 62.00

Let E=sin-1sin17+cos-1cos27+tan-1tan37

Since, sin-1sin17=5π-17, cos-1cos27=27-8π

and tan-1tan 37=37-15π

Now, E=5π-17+27-8π+37-15π

E=47-18π

Therefore, k=47, λ=18

Hence, k+λ=18+47=62

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