Question

Find all radian solutions:
4sin^4 + 4cosx - 5 = 0

Answer 1

4sin^4x + 4cosx - 5 = 0 ?

Answer 2

How do you solve to find all radian solutions for that equation?

Answer 3

Are you sure the middle term is \(\cos(x)\) and not \(\cos^{2}(x)\)?

Answer 4

Yes, i'm sure it's 4cosx. I'm not quite sure how to solve for the radian this way.

Answer 5

But you're not sure that the exponent on the first term is 4. How about 2?

Answer 6

The exponent on the first term is 2 not sure. I made a mistake.

Answer 7

Why don't we move the discussion to the othe rthread where this error has not been made?

Answer 8

alright, sure!