answersLogoWhite

0

It helps to convert everything to cosines, using the Pythagorean formula, i.e., sin2x + cos2x = 1.

sin2x + cos x = 0

(1 - cos2x) + cos x = 0

-cos2x + cos x + 1 = 0

cos2x - cos x - 1 = 0

Now you can apply the quadratic formula, solving for cos x, and using a = 1, b = -1, c = -1.

It helps to convert everything to cosines, using the Pythagorean formula, i.e., sin2x + cos2x = 1.

sin2x + cos x = 0

(1 - cos2x) + cos x = 0

-cos2x + cos x + 1 = 0

cos2x - cos x - 1 = 0

Now you can apply the quadratic formula, solving for cos x, and using a = 1, b = -1, c = -1.

It helps to convert everything to cosines, using the Pythagorean formula, i.e., sin2x + cos2x = 1.

sin2x + cos x = 0

(1 - cos2x) + cos x = 0

-cos2x + cos x + 1 = 0

cos2x - cos x - 1 = 0

Now you can apply the quadratic formula, solving for cos x, and using a = 1, b = -1, c = -1.

It helps to convert everything to cosines, using the Pythagorean formula, i.e., sin2x + cos2x = 1.

sin2x + cos x = 0

(1 - cos2x) + cos x = 0

-cos2x + cos x + 1 = 0

cos2x - cos x - 1 = 0

Now you can apply the quadratic formula, solving for cos x, and using a = 1, b = -1, c = -1.

User Avatar

Wiki User

15y ago

Still curious? Ask our experts.

Chat with our AI personalities

FranFran
I've made my fair share of mistakes, and if I can help you avoid a few, I'd sure like to try.
Chat with Fran
MaxineMaxine
I respect you enough to keep it real.
Chat with Maxine
ProfessorProfessor
I will give you the most educated answer.
Chat with Professor
More answers

It helps to convert everything to cosines, using the Pythagorean formula, i.e., sin2x + cos2x = 1.

sin2x + cos x = 0

(1 - cos2x) + cos x = 0

-cos2x + cos x + 1 = 0

cos2x - cos x - 1 = 0

Now you can apply the quadratic formula, solving for cos x, and using a = 1, b = -1, c = -1.

User Avatar

Wiki User

15y ago
User Avatar

Add your answer:

Earn +20 pts
Q: Sin squared x pluss cosx equals 0?
Write your answer...
Submit
Still have questions?
magnify glass
imp