2cos^2x-coax-1=0

Simple and best practice solution for 2cos^2x-coax-1=0 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 2cos^2x-coax-1=0 equation:


Simplifying
2cos2x + -1coax + -1 = 0

Reorder the terms:
-1 + -1acox + 2cos2x = 0

Solving
-1 + -1acox + 2cos2x = 0

Solving for variable 'a'.

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

Add '1' to each side of the equation.
-1 + -1acox + 1 + 2cos2x = 0 + 1

Reorder the terms:
-1 + 1 + -1acox + 2cos2x = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -1acox + 2cos2x = 0 + 1
-1acox + 2cos2x = 0 + 1

Combine like terms: 0 + 1 = 1
-1acox + 2cos2x = 1

Add '-2cos2x' to each side of the equation.
-1acox + 2cos2x + -2cos2x = 1 + -2cos2x

Combine like terms: 2cos2x + -2cos2x = 0
-1acox + 0 = 1 + -2cos2x
-1acox = 1 + -2cos2x

Divide each side by '-1cox'.
a = -1c-1o-1x-1 + 2s2

Simplifying
a = -1c-1o-1x-1 + 2s2

See similar equations:

| 4+2m=-28 | | y+2=-6(x-3) | | 4x+4=4x-12 | | 10n+7=12 | | 1/2x-9=15 | | 4u+16=48 | | -4(8v-3)=-8v+36 | | -13=5x+2 | | x^2-6xy+y^2=6 | | 3x+x+21=-7 | | 3x=-159 | | 4x-7=271 | | x+45+45+35=360 | | 5(x-1)=3x+25 | | 11x+16=93 | | 344/2 | | 5sin(x-5)/4cos(x-5) | | 7x+1=61 | | -5(7+n)=-37-4n | | 4+4x=21x+12 | | (2x+1)sq-6=19 | | 4+49x=21x+12x | | 11x+9=11x-6 | | -11f=7(-1-2f)+5 | | 7x*9-2=5x-6 | | 9h+3=7h+5 | | 300+10x=y | | 4/7=21/(x-3) | | 10n=9n-9 | | x-0.7x=44 | | -4m=-8-5m | | 15(t-6)+3t=6(3t+4)-8 |

Equations solver categories