exam
Maths Puzzle
Numerical Ability
t < -3
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exam Other Question
Please help, i dont understand this!
Are the following lines parallel, perpendicular, or neither?
L1 with equation x - 6y = 24
L2 with equation 6x + y = 6
1. (3+2i)squared(3-2i)squared
(3+2i)(3+2i)(3-2i)(3-2i)
9+6i+6i+4isquared 9-6i-6i+4isquared
9+12i+4(-1) 9-12i+4(-1)
(5+12i)(5-12i)
=169