Verify that : ` sin 60^@ = 2 sin 30^@ cos 30^@`

Prove that : (i) sin 60^(@) = 2 sin 30^(@) cos 30^(@) (ii) 4(sin^(4) 30^(@) + cos^(4) 60^(@)) - 3(cos^(2)45 - sin^(2)90^(@)) = 2

Prove that : sin60^(@)=2sin30^(@)cos30^(@) .

Prove that : sin60^(@)=2sin30^(@)cos30^(@) .

Verify that: (i) cos60^@=cos^2 30^@-sin^2 30^@=1/2

Evaluate The following : sin 60^@ cos 30^@ + sin 30^@ cos 60^@

sin 60 ^@ cos 30 ^@ + sin 30^ @ cos 60^@ = ?

Evalutate : sin60^(@) cos 30^(@)+sin30^(@)cos 30^(@) .

Verify:c. tan30^@(sin60^@+sin30^@+cos0^@)=(cos60^@+sin60^@)

If A= 30^@ and B= 60^@ , verify that : sin (A + B) = sin A cos B + cos A sin B .