exam
Maths Puzzle
Numerical Ability
Verify the identity using Aultiple-Angle Trigonometric formulas.
1a) cos^(4)x-sin^(4)x=cos2x
1b) tanθ+cotθ=2csc2θ
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exam Other Question
Please help me with this problem.
Find a quadratic function with solutions -5+2i and -5-2i and a leading coefficient of 1.
Is this one correct?
8*10^6
=80^6