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

sin60^(@).cos30^(@)+cos30^(@)*sin60^(@)

Prove that : sin60^(@)cos30^(@)+cos60^(@).sin30^(@)=1

Find the value of sin60^(@)cos30^(@)+cos60^(@)sin30^(@) .

Find the value of sin60^(@)cos30^(@)+cos60^(@)sin30^(@) .

Evaluate : (i) sin60^(@)*cos30^(@)-cos60^(@)*sin30^(@) (ii) tan30^(@)*cosec60^(@)+tan60^(@)*sec30^(@) .

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^(@)

Evaluate : cos60^(@)cos30^(@)+ sin 60^(@)sin30^(@)

The value of cos60^(@)cos30^(@)-sin60^(@)sin30^(@) is equal is…………..

Evaluate each of the following : cos60^(@)cos30^(@)-sin60^(@)sin30^(@)