Question

Help!





Which of the following could be used to find the measure of angle C if AB and AC are given?

Answer 1

tan
sin–1
cos–1

tan–1

Answer 2

What do you think it is?

Answer 3

Cos-1?

Answer 4

Nope.... remember. SOH CAH TOA. We aren't given the hypotenuse ;)

Answer 5

Tan-1?

Answer 6

I think so. I'll have @Harindu check to be sure :)

Answer 7

yeah you can use Tan-1 to find angle of C

Answer 8

Thanks

Answer 9

Because originally, you'd do tan(C)=ab/ac, then you'd multiply both sides by tan -1 to cancel the tan :)