Thread: Having trouble solving 4*(1+ sin theta) = cos^2 theta

Hello all!

Could someone please explain to me how to get started solving this equation? 4*(1+ sin theta) = cos^2 theta
I am really at a loss.

Thank you thank you!
~Nikki

If you replace with , then you'll get a quadratic equation in .

Originally Posted by ansulli2

Hello all!

Could someone please explain to me how to get started solving this equation? 4*(1+ sin theta) = cos^2 theta
I am really at a loss.

Thank you thank you!
~Nikki

WA , click "show steps"

Thank you thank you! So I worked through the problem and I got two solutions -1 and -3, which means on the unit circle only -1 is a correct solution. Right?

~Nikki

Originally Posted by ansulli2

So I worked through the problem and I got two solutions -1 and -3, which means on the unit circle only -1 is a correct solution. Right?

Yes, and then you need to solve .

Originally Posted by ansulli2

Thank you thank you! So I worked through the problem and I got two solutions -1 and -3, which means on the unit circle only -1 is a correct solution. Right?

~Nikki

remember you're solving for ...

Thanks all of you, that really helped and now I can work on the rest of the HW problems with a LOT less confusion ^_^

~Nikki