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(2tan30^(@))/(1+tan^(2)30^(@))...

(2tan30^(@))/(1+tan^(2)30^(@))

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

(2 tan 30^(@))/(1 + tan^(2)30^(@)) =

(2 tan 30^(@))/(1 + tan^(2)30^(@)) =

find the value of (2 tan 30^(@))/(1-tan^(2)30^(@))

Prove that : (2tan^(2)30^(@))/(1-tan^(2)30^(@))+sec^(2)45^(@)-cot^(2)45^(@)=sec60^(@) .

If (2tan^(2)30^(@))/(1-tan^(2)30^(@))+sec^(2)45^(@)-sec^(2)0^(@)=xsec60^(@) , then the value of x is

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^(@))

Verify that cos 60^(@)=(1-tan^(2)30^(@))/(1+tan^(2)30^(@))