Find the value of: cos2 60 tan2 30 + sin30sin60 tan 45
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cos 2 60 tan 2 30+ sin30sin60 tan 45
cos 2 60 tan 2 30+ sin30sin60 tan 45=1/2×1/2×1/3+1/2×_/3/2×1
cos 2 60 tan 2 30+ sin30sin60 tan 45=1/2×1/2×1/3+1/2×_/3/2×1=1/12+_/3/4
cos 2 60 tan 2 30+ sin30sin60 tan 45=1/2×1/2×1/3+1/2×_/3/2×1=1/12+_/3/4=(1+3_/3)÷12
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