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Exercise 3: Find the domain of the function f and its inverse function f. a) f(x) = 5 sinx - 7 b) f(x)=-6 cos(10x)

Exercise 3: Find the domain of the function f and its inverse function f. a) f(x) = 5 sinx - 7 b) f(x)=-6 cos(10x) c) f(x) = cos(x-7)+7 Exercise 4: Find the exact solution of the equation. Without using a calculator. a) cosx = 0

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