Posted by **y912f** on Tuesday, November 25, 2008 at 1:47pm.

can you show me how to get the answer for this

tan(3theta+7)cot(5theta-11)=1

- trig -
**Reiny**, Tuesday, November 25, 2008 at 4:52pm
that's a pretty nasty equation to solve, where did you get that?

I did some Newton's Method on it, but it converged rather slowly to an answer, I finally trimmed it up with a bit of "trial and error" at the end and got

theta = 1.146 as the answer closest to the origin.

Off-hand I don't know how to find the period of the trig expression, perhaps a good graphing tool could illustrate it.

once you have the period, you add/subtract that from my answer to get multiple solutions.

BTW, obviously my answer would be in radians.

## Answer This Question

## Related Questions

- trig - Solve the equation for cos(3theta/2).tan(3theta/2)for greater than or ...
- Trig - Use the fundamental identities to simplify the expression: cot beta sec ...
- Math - Trig - I'm trying to verify these trigonometric identities. 1. 1 / [sec(x...
- aljebra - Solve the equation for cos(3theta/2).tan(3theta/2)
- sgmic - Prove that tan theta+tan 2theta+tan 3theta=tan theta*tan 2theta*tan ...
- Trigonometry - Please review and tell me if i did something wrong. Find the ...
- TRIG.............. - Q.1 Prove the following identities:- (i) tan^3x/1+tan^2x + ...
- trig - prove the identity sec^2x times cot x minus cot x = tan x
- trig - If 2tanA+cot A=tan B, then prove that 2tan(B-A)=cot A
- math - how do I simplify these? 1. (Cot/1-tan) + (Tan/1-Cot) - Tan - Cot 2. (1+...

More Related Questions