cos^2(x)=0.8

Simple and best practice solution for cos^2(x)=0.8 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for cos^2(x)=0.8 equation: 


Simplifying
cos2(x) = 0.8

Multiply cos2 * x
cos2x = 0.8

Solving
cos2x = 0.8

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Divide each side by 'os2x'.
c = 0.8o-1s-2x-1

Simplifying
c = 0.8o-1s-2x-1

See similar equations:

| .33y+18=5-.57y | | -0.625(16w-24)=35 | | 6x+(5x+2)+90=180 | | ln(4x-6)=6 | | (1+y)+y(y)=28 | | 3(t+3)=2(t-1) | | 6d-8=34 | | -x=-y+1 | | 4x+7x-12=y | | 13c+19=13 | | 9-2s=31 | | (3x^3+x)+(4x^3-2x^2+7x+10)=0 | | 5+0.1m=0.35m | | 4(a-3)=12+4a | | 2x+9-5x=0 | | 5=3-8 | | x-20=2x+17 | | 7x^3-2x^2+8s+10=0 | | (2x+20)+(3x-10)+(2x)+(2x-10)=360 | | 55000=p(1+0.04)6 | | 7+6z=-47 | | Y=7x+1y | | -14b^2-19b+3=0 | | 129=11N-36 | | (6x+3)(7x^2+7x+9)= | | 3e-5=e+1 | | 4*o= | | 32B-224=128 | | 8p+2-7p=2 | | z+(-10)=-3 | | 24T+192=336 | | R+(-15)=-18 |

Equations solver categories