What is the general solution for 3cos^2(x)-6cos(x)+3=0 ?

The general solution for 3cos^2(x)-6cos(x)+3=0 is x=2pin

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3cos^2(x)-6cos(x)+3=0

3 cos^{2} (x) - 6 cos (x) + 3 = 0

x = 2 πn

Solution steps

3 cos^{2} (x) - 6 cos (x) + 3 = 0

Solve by substitution

cos (x) = 1

cos (x) = 1 : x = 2 πn

Combine all the solutions

x = 2 πn

7^{s i n (θ) + 1 - 3 s i n^{2} (θ)} = (\frac{1}{7})^{s i n^{2} (θ)}

14 sin (x + \frac{π}{2}) + 21 tan (π - x) = 0

tan (x) = - \frac{15}{8}

8 cos^{3} (x) = 8 cos (x)

4 cos (2 θ) = cos^{2} (θ) - 2

What is the general solution for 3cos^2(x)-6cos(x)+3=0 ?
The general solution for 3cos^2(x)-6cos(x)+3=0 is x=2pin