Edwin W.

asked • 15d

Trig identities

Suppose that cos𝑥=8/17 and 𝑥 are in the fourth quadrant and that sin𝑦=24/25 and 𝑦 is in the second quadrant. 


Which trig identity would you use for sin(x + y)?


Which trig identity would you use for tan (x - y)?

Mark M.

tutor
I would not use an identity for any of them. I would uses one of the stawndard formulas. Look in your text book.
Report

15d

2 Answers By Expert Tutors

By:

Yefim S. answered • 15d

Tutor
5 (20)

Math Tutor with Experience

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.