# precalc

posted by
**lorane**
.

what is the coterminal of 150 how do u figure this out??

how do u so

true/false:

sin120cos120=sin240?

is the expression sinx=cos90-x still true for this case?

posted by
**lorane**
.

what is the coterminal of 150 how do u figure this out??

how do u so

true/false:

sin120cos120=sin240?

is the expression sinx=cos90-x still true for this case?