Question: please solve this question I need your help! its okay take time! Please explain in detail as well and make sure the answer is right!

 please solve this question I need your help! its okay take

please solve this question I need your help! its okay take time! Please explain in detail as well and make sure the answer is right!

time! Please explain in detail as well and make sure the answer

7. Find the intervals of increasingidecreasing for the function f (x) = 3539):. (3 marks) 8. Find the minimum value(s) of the function f(x) =9); '235. (2 marks) 9. Determine the maximum/minimum point(s) for y = sin 2x-COSX-4x on the interval 0

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