Posted by **lindsay** on Monday, April 23, 2012 at 10:18pm.

Find the general solution for f(x) = 27 tan^2 x-9=0

- trigonometry -
**Reiny**, Monday, April 23, 2012 at 11:54pm
27tan^2 x = 9

tan^2 x = 1/3

tanx = ± 1/√3

x = 30° , 150° , 210° or 330°

general

x = (30 + 180k)° , where k is an integer

x = (150+180k)° , where k is an integer

## Answer this Question

## Related Questions

- Trigonometry - Find the exact value of tan(a-b) sin a = 4/5, -3pi/2<a<-pi...
- Math-Trigonometry - Show that if A, B, and C are the angles of an acute triangle...
- trigonometry - 5. Find the complete exact solution of sin x = -√3/2. 9. ...
- trigonometry - 5.Find the complete exact solution of sin x = -√3/2. 10. ...
- Math - Hi! Okay so I started to attempt this math problem; 3cot^2x-1=0. However...
- TRIGONOMETRY - Can someone please show me step by step solutions? I'd appreciate...
- Trigonometry - Verify the identity algebraically. This problem is very ...
- Trigonometry - 1.Solve tan^2x + tan x – 1 = 0 for the principal value(s) to two ...
- trigonometry - an example problem showed the following log tan A/2 = 9.54435 - ...
- trigonometry - Determine the general solution of 8cos^2x-1=0