Question

What values for theta (0 -< theta -< 2 pi) satisfy the equation?

cos(theta)-tan(theta)cos(theta)=0

Answer 1

45°

Explanation:

cos(theta)-tan(theta)cos(theta)=0

[cos(theta)](1-tan(theta))=0

1-tan(theta)=0

tan(theta)=1

theta=45°