exam
Maths Puzzle
Numerical Ability
{3x-y=7
{9x-3y=21
Slove each system of equation using matrices. If the system has no solution, say that it is inconsistent.
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exam Other Question
Given x + iy form, write in polar form: 2 radical 2 (1-i)
True or false and why?
A parallelogram whose diagonals are congruent and perpendicular is a rhombus.