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  3. solve the following equations:a) tan (x-72) = -1 o

Solve the following equations:a) tan (x-72) = -1 on the interval (-?,?).b) 2cos (x/3) +...

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Solve the following equations:a) tan (x-72) = -1 on the interval (-?,?).b) 2cos (x/3) + 1 = 0 on the interval [0,27).c) 2cos^2(x) -3cos(x) +1 = 0 on the interval[0,2?)

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