Thursday

October 2, 2014

October 2, 2014

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

**Answer this Question**

**Related Questions**

trigonometry (please double check this) - Solve the following trig equations. ...

Trigonometry - Given that a^2+b^2=2 and that (a/b)= tan(45degee+x), find a and b...

Trigo - Given that a^2+b^2=2 and that (a/b)= tan(45degee+x), find a and b in ...

Trig (inverse functions) - Problem: tan[arccsc(-5/3) + arctan(1/4)] My work: let...

advanced functions - Show that tanx = sinx / cosx can be written as tan(x+y...

adv functions - Show that tanx= (sinx/ cosx) can be written as: tan(x-y) = (tanx...

Trig. - sec^2xcotx-cotx=tanx (1/cos)^2 times (1/tan)-(1/tan)=tan (1/cos^2) times...

Pre-Cal - Perform the addition or subtraction. tanx - sec^2x/tanx tan^2(x)/tan(x...

trig - Find the smallest positive value of x(in degree) for which tan(x+100°)=...

Trig - Verify that each of the following is an identity. tan^2x-sin^2x=tan^2xsin...