जा 8° 4 sin? 72° W1 WA ¥W \ – InterviewSolution

1.	जा 8° 4 sin? 72° W1 WA ¥W \
Answer» sin^2 18° + sin^2 72°=sin^2 18° + sin^2 (90-18)=sin^2 18° + cos^2 18°=1

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