(sec x-cos x)/(tan x)

(1/cos x – cos x)/(sinx /cox)

(1-cos ^{2 } x)/cosx * cos x /sinx = (1-cos ^{2 } x)/sinx = sin ^{2 } x/sin x =sin x

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up