sin^2x-9cosx-9=0

Simple and best practice solution for sin^2x-9cosx-9=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 sin^2x-9cosx-9=0 equation: 


Simplifying
sin2x + -9cosx + -9 = 0

Reorder the terms:
-9 + -9cosx + in2sx = 0

Solving
-9 + -9cosx + in2sx = 0

Solving for variable 'c'.

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

Add '9' to each side of the equation.
-9 + -9cosx + 9 + in2sx = 0 + 9

Reorder the terms:
-9 + 9 + -9cosx + in2sx = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -9cosx + in2sx = 0 + 9
-9cosx + in2sx = 0 + 9

Combine like terms: 0 + 9 = 9
-9cosx + in2sx = 9

Add '-1in2sx' to each side of the equation.
-9cosx + in2sx + -1in2sx = 9 + -1in2sx

Combine like terms: in2sx + -1in2sx = 0
-9cosx + 0 = 9 + -1in2sx
-9cosx = 9 + -1in2sx

Divide each side by '-9osx'.
c = -1o-1s-1x-1 + 0.1111111111in2o-1

Simplifying
c = -1o-1s-1x-1 + 0.1111111111in2o-1

Reorder the terms:
c = 0.1111111111in2o-1 + -1o-1s-1x-1

See similar equations:

| 1.2X-0.8=16 | | 12x^2-102x-180=0 | | 45x^2+18x-5=0 | | 3x-6x+4=32 | | 7(150)+12x=1986 | | 4x-7=7x-13 | | 8y^2=20y | | 0=x^3-13x^2-14x | | -6(n+4)+26=-3n-7 | | -0.10(116)+0.95x=0.05(x-16) | | d=gp | | -32+b=-20 | | 9.50(70+x)=1000 | | 153.485t=400 | | x^2-2x+1=-1 | | D=WQ | | 7-x+2=92 | | 2(2x-3)+5=13 | | A=y+0.005x | | 285=9000(.01)(.04) | | 48-12y=27x | | 6X+12=101.94 | | 11h-14h=7+14h | | Y=1050+0.005x | | 6b+24=3b-12 | | -(7y+4)-(6y-6)=-4 | | .3(6x-9)+2=(-8.2x) | | 3/2x=-5 | | 12y+7=55 | | y=15x-6x^2 | | -3x+2(0)=8 | | -12=-7-3/2x |

Equations solver categories