" (8) "sqrt((1+cos30^(@))/(1-cos30^(@)))

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

Prove that sqrt((1+cos 390^(@))/(1-cos 30^@)) = tan 60^@ + sec 60^@

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

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

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

sqrt((1+cos30)/(1-cos30))=sec60+tan60

cos 15^(@) =............. A) sqrt((1+cos 30^(@))/(2)) B) sqrt((1-cos 30^(@))/(2)) C) pm sqrt((1+cos 30^(@))/(2)) D) pm sqrt((1- cos30^(@))/(2))

What is the value of (sin30^(@)+cos30^(@))/(cos30^(@)-sin30^(@)) ?

The set of positive values of n for which (sqrt((1+cos 30^(@))/(2))+ i sqrt((1-cos 30^(@))/(2)))^(n) is real, is

Show that : (i) (1-sin60^(@))/(cos60^(@))=(tan60^(@)-1)/(tan60^(@)+1) (ii) (cos30^(@)+sin60^(@))/(1+sin30^(@)+cos60^(@))=cos30^(@)