4cos240°×sin300°-2cosec30°×sin330°×cos300°=root3+1
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Step-by-step explanation:
4×cos(270-30)×sin(360-60)-2cosec30×sin(360-30)×cos(360-60)
=4×(-sin30)×(-sin60)-2c0sec30×(-sin30)×cos60
=4×1/2×√3/2+2×2×1/2×1/2
=4√3/4+4/4
=√3+1
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