Question

cos(180-theta)×cot(90+theta)×cos(-theta) by tan(180+theta)×tan(270+theta)×sin(360-theta)​

Answer 1

Answer:

Step-by-step explanation:

cos(180-theta)*cos(90+theta)*cos(-theta) by tan(180+theta)×tan(270+theta)×sin(360-theta)​

by ASTC rule

=-cos(theta)*-sin(theta)*cos(theta) by

tan(theta)*-cot(theta)*-sin(theta)

=-cos^2(theta)*-sin(theta)by

Sin(theta)/cos(theta)*-cos(theta)/sin(theta)*-sin(theta)

= -cos^2(theta) by -1

=cos^2(theta)