( \frac 5 \sin 35 ^ \circ \cos 55 ^ \circ ) %2B ( \f – InterviewSolution

InterviewSolution

1.	( \frac 5 \sin 35 ^ \circ \cos 55 ^ \circ ) %2B ( \frac \cos 55 ^ \circ 2 \sin 35 ^ \circ ) - 2 \cos 60 ^ \circ
Answer» 5sin(90-55)/cos55+cos55/2sin(90-55)-2*1/2=5cos55/cos55+cos55/2cos55-1=5+1/2-14+1/2=9/2

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