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" 13.Prove that: "sin60^(@)=(2tan30^(@))...

" 13.Prove that: "sin60^(@)=(2tan30^(@))/(1+tan^(2)30^(@))=(sqrt(3))/(2)

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Verify that sin60^(@)=(2tan 30^(@))/(1+tan^(2)30^(@))

Prove that : sin(2 times 30^(@))=(2tan30^(@))/(1+tan^(2)30^(@))

Prove that : sin(2 times 30^(@))=(2tan30^(@))/(1+tan^(2)30^(@))

Prove that : tan(2 times 30^(@))=(2tan30^(@))/(1-tan^(2)30^(@))

Prove that : tan(2 times 30^(@))=(2tan30^(@))/(1-tan^(2)30^(@))

Verify:a. Sin60^@=(2tan30^@)/(1+tan^2 30^@)

Prove that: (cos30^(@)+sin60^(0))/(1+cos60^(@)+sin30^(@))=(sqrt(3))/(2)

Prove that : cos(2 times 30^(@))=(1-tan^(2)30^(@))/(1+tan^(2)30^(@))

Prove that : cos(2 times 30^(@))=(1-tan^(2)30^(@))/(1+tan^(2)30^(@))

Prove that: cos 60=(1-(tan 30)^2)/(1+(tan 30)^2)