prove...

1.if tanx + tan(x+Ï€/3) +tan(x+2Ï€/3)=3
prove , 3tanx - tan3x1 - 3tan2x=1

2.if α,β are two different values of θ when α≠β,where 0< α,β <2π which satisfy the equation 6cosθ + 8sinθ =9
find the value of sin(α-β)

2 Answers

16
Hari Shankar ·

171
Hari ·

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