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Calculate / cot (x) csc (x) dx. Your answer should be in terms of x.Calculate dx, where a is a non-zero constant. Vx2 - 2ax + 2a2ba + 1 Calculate da, where b is a non-zero constant. x3 + 6x2 +9xWrite your own one page summary / guide / mind map about how to figure out what integration technique(s) might be useful, and how to use them. You should consider: . What features to keep an eye out for, and what they mean about the techniques that could be used (1 mark). . How to know how to use the technique once you've decided it might help (e.g. how do you know what substitution to use?) (1 mark). . What you could try first (and why) if there's no obvious technique (0.5 marks). The remaining 0.5 marks will be for overall clarity. You do not need to include the evaluation of any integrals, but may wish to demonstrate some key steps to show why a technique is helpful