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If it right to say cos(60^@ + 30^@) = co...

If it right to say `cos(60^@ + 30^@) = cos60^@ cos30^@ -sin 60^@ sin 30^@`

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

The value of sin 60^@ cos 30^@-cos 60^@ sin30^@ is: sin 60^@ cos 30^@-cos 60^@ sin30^@ का मान है: