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

2 Answers
Jun 10, 2018

#-sin(alpha)#

Explanation:

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)#

Jun 11, 2018

#-sin a#

Explanation:

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