exam
Maths Puzzle
Numerical Ability
logn1/8=-3
n=log81/6
log1/8n=4/3
log2n=-3
log1/9^27=n
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exam Other Question
simplify radical, assume all variables are unrestricted
sqrt(n^2+12n+36)
Use an augmented matrix to solve the linear system.
x+4y-2z=3 Step #1 [1 4 -2: 3]
x+3y+7z=1 [1 3 7 :1]
2x+9y+z=8 [2 9 1 :8]