sin(θ-540°)=
a) sinα
b) -sinα
c) cosα
d) -cosα
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sin(theta -540)
-sin(540-theta)
sin(theta) bcz 540 -angle means 2nd quardent and in 2nd quardent sin is negative and trigonometry function does not change at 540 degree
ans is a)sin theta
ankit225:
According to ALL-SIN-TAN-COS rule, sin is positive in 2nd quadrant.
yeah tight
right
I cannot correct now
m sorry
It's ok ! You helped me to solve this question. Thank you !
welcome
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