exam
Maths Puzzle
Numerical Ability
What type of solution do you get for quadratic equations where D < 0? Give reasons for your answer.
Very confused.
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exam Other Question
Compute the inverse of the transformation f(x,y,z) = (x + 2y -z, x -2y -z, x + 6y + z).
X+2* X-3
X-3 X+2