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Question

Evaluate: 5sin2300+cos2450+4tan26002sin300cos600+tan450=55m.Find m

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Solution

Given, 5sin230°+cos245°+4tan260°2sin30°.cos60°+tan45°=55m

=5×(12)2+12+4×32×12× 12+1

=54+12+12 12+1

=556 m=6

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