Question

Check my work, please.
\((1 + \cos\theta )(1 - \cos \theta) \)

\( \color{Black}{\Rightarrow 1^2 - \cos^2 \theta}\)

\( \color{Black}{\Rightarrow 1 - \cos^2 \theta }\)

\( \color{Black}{\Rightarrow \sin^2 \theta}\)

Answer 1

Correct?

Answer 2

yes

Answer 3

Thanks!

Answer 4

u really needed ''help'' for this O.o

Answer 5

lol why not?

Answer 6

lol maybe

Answer 7

absolutely correct!

Answer 8

yes it is.