exam Maths Puzzle Numerical Ability

A regular polygon has 12 sides. Find the measure of each exterior angle. Show how it is done.

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exam Other Question

given that 1+3i is a zero of f(x)= x^4-2x^3+5x^2+10x-50 find all zeros and write a linear factorization Please Help

6 -(3x  1)=19 how can I solve this and check my answer