Monday
April 21, 2014

Homework Help: Pre-calculus

Posted by Lucy on Monday, October 13, 2008 at 11:42am.

solve 4 sin^2x + 4 sqrt 2 cos x-6=0 for all real values of x.

Going by the example in the book I got to: 4 cos^2x + 4sqrt2 cosx -10 = 0 but do not know how to proceed.

Any help would be great.

Thanks

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...
Math - Prove each identity: a) 1-cos^2x=tan^2xcos^2x b) cos^2x + 2sin^2x-1 = sin...
CALCULUS - Please help.. ʃ (4sinx cos/sin 2x cos 2x)dx That's ...
Math/Calculus - Solve the initial-value problem. Am I using the wrong value for ...
maths - Choose the option that gives the solution of the initial-value problem ...
Pre Calculus - Solve 2cos^2(2x)=1 I divided both sides by 2 and got this cos^2(...
Trigonometry - I have some trigonometric equations to do, but I'm pretty lost, ...
Math - Solving for Trig Equations - Solve the following equation for 0 less than...
trigonometry (please double check this) - Solve the following trig equations. ...
Calculus - Please look at my work below: Solve the initial-value problem. y'' + ...

Search
Members