sin(270-x)=sin270cosx+cos270sinx
= -cosx + 0
Which of the following is equal to sin(270-x)?
A. -tan(x)
B. 1-tan(x)
C. -cos(x)
D. 1+cos(x)
E. 1+sin(x)
1 answer
A. -tan(x)
B. 1-tan(x)
C. -cos(x)
D. 1+cos(x)
E. 1+sin(x)
1 answer