singo’ cos 30 + Sin 30 cos 60
Cox (90-60) sin 60’t sin (90-60) Co866
Sin 60 Sip Go + Cox 60 cos 60′
Sin2Go + Cop? G

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singo’ cos 30 + Sin 30 cos 60
Cox (90-60) sin 60’t sin (90-60) Co866
Sin 60 Sip Go + Cox 60 cos 60′
Sin2Go + Cop? GO
– I Ans​

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