SOLUTION: Solve 18 cos theta = 10 cos theta +8 for all values of theta if theta is measured in radians. I really need help !!!

Algebra.Com
Question 967379: Solve 18 cos theta = 10 cos theta +8 for all values of theta if theta is measured in radians.

I really need help !!!

Answer by lwsshak3(11628)   (Show Source): You can put this solution on YOUR website!
Solve 18 cos theta = 10 cos theta +8 for all values of theta if theta is measured in radians.
18cosx=10cosx+8
8cosx=8
cosx=1
x=0+2πk, k=any integer

RELATED QUESTIONS

Solve 2tan theta=2cot theta for all values of theta if theta is measured in... (answered by Alan3354,lwsshak3)
prove that cos 7 theta +cos 5 theta + cos 3 theta + cos theta = 4 cos theta cos 2 theta... (answered by Edwin McCravy)
Please help me solve this values for me. Find all values of theta in the interval 0° <... (answered by stanbon)
Which expression is equivalent to cos 2 theta for all values of theta: cos squared... (answered by lwsshak3)
Please..I need help. The problem asks to write the following in terms of sin theta and... (answered by mananth)
i need help: find sin theta if cos theta equals two thirds and theta is in quadrant four. (answered by Alan3354)
Solve algebraically for all values of theta in the interval 0 degrees is < or equal to... (answered by lwsshak3)
If sin theta= 2/3 and theta is in Quadrant I, what is the value of (tan theta)(cos... (answered by stanbon)
Find all the values of theta, {{{0<=(theta)<=3pi}}} for which... (answered by Cromlix)