Sin (alpha-540°) Explain and Answer The Value?

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Answer 1 · 2018-06-10T10:14:02

#-sin(alpha)#

Using
#sin(alpha-540^(circ))=sin(alpha)*cos(540^(circ))-cos(alpha)*sin(540^(circ))#
since

#cos(540^(circ))=-1#
#sin(540^(circ))=0#
we get

#-sin(alpha)#

Answer 2 · 2018-06-11T00:09:06

#-sin a#

#sin (a - 540) = sin (a - 180 - 360) = sin (a - 180) = - sin a#