Final Answer
$x=\frac{1}{4}\pi+\pi n,\:x=\frac{3}{4}\pi+\pi n\:,\:\:n\in\Z$
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Step-by-step Solution
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1
The angles where the function $\cos\left(2x\right)$ is $0$ are
$2x=90^{\circ}+360^{\circ}n,\:2x=270^{\circ}+360^{\circ}n$
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$2x=90^{\circ}+360^{\circ}n,\:2x=270^{\circ}+360^{\circ}n$
Learn how to solve trigonometric equations problems step by step online. Solve the trigonometric equation cos(2x)=0. The angles where the function \cos\left(2x\right) is 0 are. Solve the equation (1). Divide both sides of the equation by 2. Expand the fraction \frac{90+360n}{2} into 2 simpler fractions with common denominator 2.
Final Answer
$x=\frac{1}{4}\pi+\pi n,\:x=\frac{3}{4}\pi+\pi n\:,\:\:n\in\Z$