What is the general solution for 3cos^2(x)=0 ?

The general solution for 3cos^2(x)=0 is x= pi/2+2pin,x=(3pi)/2+2pin

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3cos^2(x)=0

3 cos^{2} (x) = 0

x = \frac{π}{2} + 2 πn, x = \frac{3 π}{2} + 2 πn

Solution steps

3 cos^{2} (x) = 0

Divide both sides by

3

cos (x) = 0

General solutions for

cos (x) = 0

x = \frac{π}{2} + 2 πn, x = \frac{3 π}{2} + 2 πn

tan (4 x) = 2 tan (2 x)

sec (x) - 4 = - sec (x)

5 cos (x) = \frac{1}{cos ( x )}

(tan (x) + 1) (2 sin (x) - 3) = 0

33 + 2 tan (x) = 23 - tan (x)

What is the general solution for 3cos^2(x)=0 ?
The general solution for 3cos^2(x)=0 is x= pi/2+2pin,x=(3pi)/2+2pin