book
Maths Puzzle
Numerical Ability
Solve:
3x
1 1 = 2
(the three x and 1 1 are inside absolute value brackets)
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book Other Question
Find two consecutive whole numbers such that the sum of their squares is 130
n(n+2)=130?
To expand the logarithmic expression as much as possible:
In x^3/(x-3)^2
Solve:
log10 (x-30)= 3- log10 x