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Question : 25 of 160
Marks:
+1,
-0
Solution:
sin(tan−1‌+tan−1‌+tan−1‌−tan−1‌) ⇒sin[(tan−1‌+tan−1‌)+(tan−1‌−tan−1‌)] ⇒sin[tan−1(‌)+tan−1(‌)] ⇒sin[tan−1(‌)+tan−1(‌)] ⇒sin(tan−1‌+tan−1‌) ⇒sin[tan−1(1)+tan−1(1)] ⇒sin(‌+‌) ⇒sin(‌)=1
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