What is the general solution for cos^2(x)-sin^2(x)=1 ?

The general solution for cos^2(x)-sin^2(x)=1 is x=pin

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

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

x = πn

Solution steps

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

Rewrite using trig identities

cos (2 x) = 1

General solutions for

cos (2 x) = 1

2 x = 0 + 2 πn

Solve

2 x = 0 + 2 πn : x = πn

x = πn

sin^{2} (x) - 2 sin (x) - 3 = 0

2 cos (x) + sin (2 x) = 0, 0 \leq x \leq 2 π

tan^{2} (x) sin (x) = sin (x)

2 sin (2 x) - 3 = 0

2 sin (x) cos (x) = 0

What is the general solution for cos^2(x)-sin^2(x)=1 ?
The general solution for cos^2(x)-sin^2(x)=1 is x=pin