Menyelesaikan cos 2theta + sin 2theta = 1 | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$\cos\ 2\theta+\sin\ 2\theta=1$$