Trig help please (1 Viewer)

[findsome1]

Two questions.

Find the simplest expression for each of the questions

sec^2theta(1-cos^2 theta)

and


sin^2 theta cos theta + cos^3 theta


I would appreciate it if you could show working thanks

 

[Drongoski]

Two questions.

sec^2theta(1-cos^2 theta)

and


sin^2 theta cos theta + cos^3 theta


I would appreciate it if you could show working thanks

But what are the questions?

 

[findsome1]

woops sorry.

Find the simplest expression for each of the questions

 

[MATHSCAPE]

sec^2 x (1-cos^2 x)
1/cos^2 x (sin^2 x)
tan^2 x

sin^2 x cos x + cos^3 x
cos x (sin^2 x + cos^2 x)
cos x