" gb.Prove that "((1+cot60^(@))/(1-cot60^(@)))^(2)=(1+cos30^(@))/(1-cos30^(@))

Prove that : ((tan60^(@)+1)/(tan60^(@)-1))^(2)=(1+cos30^(@))/(1-cos30^(@))

((tan60^(@)+1)/(tan60^(@)-1))^(2)=(1+cos30^(@))/(1-cos30^(@))

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

Prove that : (i) ((tan 60^(@)+1)/(tan 60^(@) - 1))^(2) = (1 + cos 30^(@))/(1 - cos 30^(@)) (ii) 3 "cosec"^(2) 60^(@) - 2 cot^(2) 30^(@) + sec^(2) 45^(@) = 0

Evaluate : (cot40^(@))/(tan50^(@))-(1)/(2)((cos30^(@))/(sin60^(@)))

Prove (1-sin60^(@))/(cos60^(@))=(1-tan30^(@))/(1+tan30^(@))

cot60^(@)xxtan30^(@)= ?

Prove that sqrt((1+cos30^(@))/(1-cos30^(@)))=sec 60^(@)+tan60^(@) .

Show that : cos30^(@)=sqrt((1+cos60^(@))/(2))

Show that : cos30^(@)=sqrt((1+cos60^(@))/(2))