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[" Q "10" ,The value of the determinant "|[sin30^(@),cos30^(@)],[-sin60^(@),cos60^(@)]" is "],[[" a) "x," b) "sqrt(3)/2," c) "1]]

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

Evaluate : |(sin30^@, cos30^@),(-sin60^@, cos60^@)| .

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

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

Evaluate |{:(sin30^@"",cos30^@),(-sin60^@"",cos60^@):}|

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

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

Evaluate the following : sin60^(@)cos30^(@)+sin30^(@)cos60^(@)

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