What is the general solution for solvefor θ,cos(θ)=0 ?

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

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solvefor θ,cos(θ)=0

solve for

θ, cos (θ) = 0

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

Solution steps

cos (θ) = 0

General solutions for

cos (θ) = 0

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

sec^{2} (2 x) - 2 tan (2 x) = 0

x, d u = cos (4 x)

(\frac{sin ( θ )}{2 cos ( θ )}) - 1 = 0

2 \cdot cos^{2} (2 x) + 9 \cdot cos (4 x) = - 2.4214900000000 \dots

tan (- x) = tan (x)

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