SOLUTION: Expand (3cos^2theta + 2sec^2theta)^2 i figured this much but got stuck after this: (3cos^2theta + 2sec^2theta)(3cos^2theta + 2sec^2theta) (9cos^4theta + 4sec^2theta6cos^2thet

Algebra.Com
Question 31983: Expand (3cos^2theta + 2sec^2theta)^2 i figured this much but got stuck after this:
(3cos^2theta + 2sec^2theta)(3cos^2theta + 2sec^2theta)
(9cos^4theta + 4sec^2theta6cos^2theta + 4sec^4theta)
9cos^4theta + 4 (1/cos theta)^2 6cos^2theta + 4(1/cos theta)^4
i'm stuck, please help me! thanks!

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
You have expanded the original expression.
What more do you want to do?
Cheers,
Stan H.

RELATED QUESTIONS

Solve the equation on the interval [o,2pi) 1.) cos(2theta - pi/2)= -1 I started off (answered by KMST)
I need help verifying this trigonometric identity: cscTHETA * tanTHETA + cot^2THETA=... (answered by Alan3354)
How do I eliminate theta from these two equations? x = 3cos(2theta) + 1 y =... (answered by fractalier)
I need to prove this identity tan^2theta-sin^2theta =... (answered by josgarithmetic)
find all solutions of the equation tan^2theta=3/2sec theta in the interval [0,... (answered by lwsshak3)
how to prove... (answered by lwsshak3)
{{{ csc(2theta)tan(2theta)-1=tan(2theta)... (answered by agentc0re)
solve each of the following cos theta=-3sin theta 3cos^2theta=5-7sin... (answered by drk)
cos^2(theta)sec^2(theta)-[cos^2theta+sin^2theta] (answered by mananth)