Assume 90 θ 180 .
where 180 θ 270 .
where 270 θ 360 .
Given
find the values of the other five trigonometric functions of θ.
Find the values of the other five trigonometric functions of θ.
Solve cos x / cot x.
Solve cos t · csc t · tan t.
Simplify:
Simplify the given expression.
Express sec 2t in terms of sin 2t.
Express cot α· csc α in terms of cos α.
Is the expression an identity?
Show that cos 2x/(1 – sin 2x) = 1/(sec 2x – tan 2x).
Show that
For what value of x is the following equation not an identity?
Using the Pythagorean identity 1 + tan2 θ = sec2 θ derive
sin2 θ + cos2 θ = 1.
Assume 90 θ 180.
where 180 θ 270.
where 270 θ 360.