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((sqrt(3)+2 cosA)/(1- 2sin A))^(-3)+((1+...

`((sqrt(3)+2 cosA)/(1- 2sin A))^(-3)+((1+ 2sin A)/(sqrt(3)-2 cosA))^(-3)=`

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((sqrt(3)+2cos A)/(1-2sin A))^(-3)+((1+2sin A)/(sqrt(3)-2cos A))^(-3)=

((sqrt(3)+2cos A)/(1-2sin A))^(-3)+((1+2sin A)/(sqrt(3)-2cos A))^(-3)=

((sqrt(3) + 2 cosA)/( 1-2 sin A ))^(-3) + ((1+ 2 sin A )/( sqrt(3)-2 cos A ))^(-3) =

((sqrt(3)+2sin A)^(3))/((1-2cos A)^(3))+((1+2cos A)^(3))/((sqrt(3)-2sin A)^(3))

((sqrt(3)+2sin A)^(3))/((1-2cos A)^(3))+((1+2cos A)^(3))/((sqrt(3)-2sin A)^(3))=

(sin3A)/(sinA)-(cos3A)/(cosA)=2

If alpha = sin^(-1)(sqrt(3)/2)+sin^(-1)(1/3) , beta =cos ^(-1)(sqrt(3)/2)+cos^(-1)(1/3) then

If alpha = sin^(-1)(sqrt(3)/2)+sin^(-1)(1/3) , beta =cos ^(-1)(sqrt(3)/2)+cos^(-1)(1/3) then

Prove that : (cosA)/(1+sin A) +(1+sinA)/(cosA)=2 sec A

sin^(-1)((1)/(sqrt(2)))-3sin^(-1)((sqrt(3))/(2))=