If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Using the trig angle addition identities

Problem

Find cosine, left parenthesis, angle, B, A, C, minus, 60, degrees, right parenthesis.
Choose 1 answer:
Stuck?
Stuck?