Find the value of 5cos^60+4sin^30°_tan^45°÷sin^30°+cos^30°+ tan^45°
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cos 60°= 0.5
sin 30°= 0.5
tan 45°=1
thus, ans. =5*0.5+ 4*0.5 - 1/0.5+ 0.5+1
=2.5+2-2+0.5+1
=4
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