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QUESTION
suppose that f(x)=cos(x)-x a) employ the intermediate value theorem to explain why there is a solution of the equation f(x)=0 in the interval
suppose that f(x)=cos(x)-x
a) employ the intermediate value theorem to explain why there is a solution of the equation f(x)=0 in the interval [0,pie/2]
b) use newton's method to approximate a zero of this function, up to 10 decimal places.
