Posted by **Emily** on Monday, May 24, 2010 at 11:09pm.

Can someone check my answers please? Thank you!

If tan x = 3/5, evaluate:

1) tan 2x

2) tan 3x

==> For #1, I got 15/8; for #2, I got -99/5. Are these answers correct?

- Math Analysis -
**Reiny**, Monday, May 24, 2010 at 11:13pm
both correct, good job

- Math Analysis -
**Emily**, Monday, May 24, 2010 at 11:19pm
Thank you :)

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