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Sin 60° cos 30°+cos 60°sin 30° evaluate |
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Answer» Sin 60° cos 30°+cos 60° sin 30°=0sin 60° sin (90-60) +cos 60° cos (90-60)=0sin 60° sin 60°+cos 60° cos 60°=01+1=2. Sin 60° cos(90-30) + cos 60° sin(90-30). =). Sin60°cos60° + cos 60° sin60° =). Sin^260° + cos^260° =). 1Bcz, sin^2theeta +cos^2theeta =1 |
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