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Is it right to say that cos ( 60^(@) + 3...

Is it right to say that `cos ( 60^(@) + 30 ^(@) ) = cos 60^(@) cos 30 ^(@) -sin 60^(@) sin 30 ^(@) `

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The correct Answer is:
Yes
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cos 60^(@) sin 30^(@) +cos 30^(@) sin 60^(@)=

tan60^(@)cos60^(@)+cot60^(@)sin60^(@)=_____ .

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cos30^(@)sin60^(@)+cos60^(@)sin30^(@)= ……………………

co60^(@)sin30^(@)+cos30^(@)sin60^(@) =___.

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

Find the value of cos 60^(@) + sin 60^(@)

Find the value of cos 30^(@) + sin 30^(@)