exam Maths Puzzle Numerical Ability

Please help me with this problem.
Find a quadratic function with solutions -5+2i and -5-2i and a leading coefficient of 1.

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exam Other Question
An experiment consists of rolling one 6-sided die. Two events are defined as follow:
A = roll a five.
B = an odd number comes up.
1. Describe a sample space.
2. Find the probab Verify the identity using Aultiple-Angle Trigonometric formulas.

1a) cos^(4)x-sin^(4)x=cos2x



1b) tanθ+cotθ=2csc2θ