Sunday

April 20, 2014

April 20, 2014

Posted by **Tyler** on Thursday, April 15, 2010 at 5:12am.

tan(x+pi/4)=1+tanx/1-tanx

- Pre Calculus -
**drwls**, Thursday, April 15, 2010 at 5:24amUse the tan (x + y) formula.

tan(x+y) = (tanx + tany)/(1 - tanx tany)

with y = pi/4, tany = 1

Your right hand side should have parentheses

**Related Questions**

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 ...

Pre Calculus - Establish the following identity Sin2x/1+cos2x=tanx

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

Math - 1)A piano tuner uses a tuning fork. If middle C has a frequency of 264 ...

Pre Calculus - Establish the identity tanx/2=cscx-cotx

Pre Cal - could someone please tell me what the other angle identity of tan is? ...

Calculus - Find the limit lim as x approaches (pi/2) e^(tanx) I have the answer ...

calculus pleas pleas help, derivates - what is the derivative of x/tan(x) and ...

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