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March 5, 2015

March 5, 2015

Posted by **Don** on Tuesday, December 27, 2011 at 6:42pm.

then tan(x-y) = ??

a.7/4

b.7/6

c.1/8

d.8/6

which answer is correct ??

- Trig -
**Damon**, Tuesday, December 27, 2011 at 6:46pmtan(a-b) = [ tan a - tan b)/(1 + tan a tan b)

You better learn those trig identities.

- Trig -
**Don**, Tuesday, December 27, 2011 at 6:56pmThe answer is 1/8

Is that correct Damon ?

- Trig -
**Damon**, Tuesday, December 27, 2011 at 8:17pmYes, correct

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