Question: 2. Given f(x)=sec x-cos-2(x) Determine all points on the function y = f(x) where the slope of the tangent is horizontal. [3 marks]

2. Given f(x)=sec x-cos-2(x) Determine all points on the function y = 

2. Given f(x)=sec x-cos-2(x) Determine all points on the function y = f(x) where the slope of the tangent is horizontal. [3 marks]

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