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1. Solve sin(x)= √2/2 over the interval [0,2π). 2. Solve 4cos(x)+1=3 over the interval [0,2π). 3....

1. Solve sin(x)= √2/2 over the interval [0,2π).

2. Solve 4cos(x)+1=3 over the interval [0,2π).

3. Solve cos^2(x)+6=7 over the interval [0,2π).

4. How many solutions are there for the equation 4cos(x)+5=6 over the interval [0,2π).

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