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NirvanaRock
@NirvanaRock
October 2021
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Sin50+cos20
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sedinalana
Verified answer
Sin50+cos(90-70)=sin50+sin70=2sin60cos10=2*√3/2*cos10=√3cos10
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Answers & Comments
Verified answer
Sin50+cos(90-70)=sin50+sin70=2sin60cos10=2*√3/2*cos10=√3cos10