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Question : 26 of 160
Marks:
+1,
-0
Solution:
‌sin‌−1(−cos‌2)=−sin‌−1(sin‌(‌−2))‌⇒‌‌cos−1(sin‌3)=cos−1(cos(3−‌))‌⇒‌‌tan−1(cot‌5)=tan−1(tan(‌−5))So,
sin‌−1(−cos‌2)+cos−1(sin‌3)‌+tan−1(cot‌5)‌=2−‌+3−‌+‌−5‌=‌−π=‌
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