What is the general solution for sin^2(x)+cos^2(x)=cos(x) ?

The general solution for sin^2(x)+cos^2(x)=cos(x) is x=2pin

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sin^2(x)+cos^2(x)=cos(x)

sin^{2} (x) + cos^{2} (x) = cos (x)

x = 2 πn

Solution steps

sin^{2} (x) + cos^{2} (x) = cos (x)

Rewrite using trig identities

1 = cos (x)

Switch sides

cos (x) = 1

General solutions for

cos (x) = 1

x = 0 + 2 πn

Solve

x = 0 + 2 πn : x = 2 πn

x = 2 πn

sin (\frac{x}{3}) = - 0.85

2 cos (3 θ) = 2

tan (θ) = 2, 0 < θ < (\frac{π}{2}), sin (\frac{θ}{2})

sinh (a) = \frac{1}{2}

sin (x) = \frac{- 1}{\frac{5}{2}}

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