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Popular >

cos^2(x)-3cos(x)=-2

Solution

cos^{2} (x) - 3 cos (x) = - 2

Solution

x = 2 πn

+1

Solution steps

cos^{2} (x) - 3 cos (x) = - 2

Solve by substitution

cos (x) = 2, cos (x) = 1

cos (x) = 2 :

No Solution

cos (x) = 1 : x = 2 πn

Combine all the solutions

x = 2 πn

Popular Examples

2 cot (x) + 3 = 1

3tan(θ)-2sqrt(3)=sqrt(3)

3 tan (θ) - 23 = 3

1-2sin^2(x)=sin(x)

1 - 2 sin^{2} (x) = sin (x)

sin(2θ)=2cos^2(θ)

sin (2 θ) = 2 cos^{2} (θ)

0 = 3 cos (3 θ)

Frequently Asked Questions (FAQ)

What is the general solution for cos^2(x)-3cos(x)=-2 ?
The general solution for cos^2(x)-3cos(x)=-2 is x=2pin