book Maths Puzzle Numerical Ability

1-Sketch, in the complex plane, the set of numbers satisfying the following conditions:
a.Re z >1 and Im z <= 2,
b. (rez)^2 +(lmz)^2 <1 .
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log (6x + 5) - log 3 = log 2 - log x 2a+2+6