Question

a=b sin0 and c=d cos0 then a+c=​

Answer 1

Answer:

If `a = cos theta + isin theta`, `b = cosphi + isinphi`, `c = cos psi + i sin psi` and `a/b+b/c+c/a=2` then `sin(theta-phi)+sin(phi-psi)+sin(psi-theta)` equals