4cos(x)-sin^2(x)-1=0

Simple and best practice solution for 4cos(x)-sin^2(x)-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 4cos(x)-sin^2(x)-1=0 equation:


Simplifying
4cos(x) + -1sin2(x) + -1 = 0

Multiply cos * x
4cosx + -1sin2(x) + -1 = 0

Multiply in2s * x
4cosx + -1in2sx + -1 = 0

Reorder the terms:
-1 + 4cosx + -1in2sx = 0

Solving
-1 + 4cosx + -1in2sx = 0

Solving for variable 'c'.

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

Add '1' to each side of the equation.
-1 + 4cosx + 1 + -1in2sx = 0 + 1

Reorder the terms:
-1 + 1 + 4cosx + -1in2sx = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 4cosx + -1in2sx = 0 + 1
4cosx + -1in2sx = 0 + 1

Combine like terms: 0 + 1 = 1
4cosx + -1in2sx = 1

Add 'in2sx' to each side of the equation.
4cosx + -1in2sx + in2sx = 1 + in2sx

Combine like terms: -1in2sx + in2sx = 0
4cosx + 0 = 1 + in2sx
4cosx = 1 + in2sx

Divide each side by '4osx'.
c = 0.25o-1s-1x-1 + 0.25in2o-1

Simplifying
c = 0.25o-1s-1x-1 + 0.25in2o-1

Reorder the terms:
c = 0.25in2o-1 + 0.25o-1s-1x-1

See similar equations:

| 5=15y | | T=M(9+FG) | | (2x-y)-24i=8+4yi | | m-54=3+78 | | 5x+5=-6x-2 | | 6.7k+1=5.7 | | 3+8x=9x-2 | | R^3=-25/1600 | | 9t-21=3(x-7)6+t | | 144=3.14x^2*158 | | 6x^2-18x/9x^2-27x | | 6x=25+9 | | -6x+128=5x-125 | | X=46+.285x | | 3(3+k)= | | 4x^2+5x-2=0findx | | x^2+12x+2=-9 | | p-1=2p^2-3p+5 | | 9t-21=3 | | -6x+x^2=97+10y-y^2 | | 9m-12=4+8m | | (q-3)(q-5)= | | 3(3x+1)-7y=9 | | J/2-7=9 | | 15r^2+2rs-s^2=0 | | 15x-4/x-17=0 | | 0.10(y-3)+0.16y=0.06-1.8 | | 2(x-7)+6=1x-3 | | 6/2=6/4x-1 | | (2/7)x | | 0=0.25sin(5t)+.25 | | 7x+2.5=16.5 |

Equations solver categories