exam Maths Puzzle Numerical Ability

Can anyone help me to the inequality represented by the graph??

<-- -20-- -10--0---10---*20---30---40-->


Kia

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exam Other Question

Simplify: (1 + i)/(2 - i).

Thanks
write the expression a a complex number in stsandard form.
(2-6i)-(-10+4i)