Question #297ca
2 Answers
Jul 10, 2017
Explanation:
"using the "color(blue)"trigonometric identities"
•color(white)(x)cottheta=costheta/sintheta
•color(white)(x)sectheta=1/costheta
rArrcot^2theta . sintheta .sectheta
=(cos^2theta)/(sin^2theta)xxsinthetaxx1/costheta
=(cancel(costheta)costheta)/(cancel(sintheta)sintheta)xxcancel(sintheta)xx1/cancel(costheta)
=costheta/sintheta
=cottheta
color(red)"OR"
costheta/sintheta=costhetaxx1/sintheta=costhetacsctheta
Jul 10, 2017
Explanation:
Rewrite in terms of