exam
Maths Puzzle
Numerical Ability
4^-x = 2^2x+3
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exam Other Question
How do you simplify 4In2 + 1/2 In4 - In8 to a single logarithm?
Solve the system of equations: {2x+y-3z=1}
{3x-y+4z=6}
{x+2y-z=9}