exam Maths Puzzle Numerical Ability

2x+1/x-30=7 square root 2x+1/x

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exam Other Question

Can someone help me with this problem:
Use the graph of g(x) = |x| to sketch the graph of y = 1/3 |x-1|
Convert the following to polar form, answer in radians
(i) 1 + j3
(ii)5 - j2