" iii) "sin30^(@)=?

What is the value of (2-sin30^(@)) ?

Evaluate it [[sin30 ^ (@), cos30 ^ (@) - sin60 ^ (@), cos60 ^ (@)]]

"(1) "sin60^(@)cos30^(@)+sin30^(@)cos60^(@)

(cos 60^(@) xx cos 30^(@)+sin 60^(@)xx sin 30^(@))/(2 sin 30^(@) xx cos 0^(@)+ sin 90^(@))=?

value of sin10^(@)sin30^(@)sin50^(@)sin70^(@)

sin10 ^ (@) + sin20 ^ (@) + sin30 ^ (@) + ......... + sin360 ^ (@) =

Verify each of the following : (i) sin60^(@)cos30^(@)-cos60^(@)sin30^(@)=sin30^(@) (ii) cos60^(@)cos30^(@)+sin60^(@)sin30^(@)=cos30^(@) (iii) 2sin 30^(@)cos30^(@)=sin60^(@) (iv) 2sin45^(@)cos45^(@)=sin90^(@)

Find the value of cos60^(@) cos 30^(@)-sin 60^(@) sin 30^(@)

cos 60^(@) sin 30^(@) +cos 30^(@) sin 60^(@)=