A geometry problem by Toka Amr

Geometry Level pending

Sin(A+B)/cosACosB

TanA-TanB TanA+TanB TanATanB TanB-TanA

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1 solution

Toka Amr
Apr 15, 2015

Sin(A+B)=sinACosB+CosAsinB. SinACosB/CosACosB +CosAsinB/CosACosB. =sinA/CosA + sinB/cosB. =tanA + TanB

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