book
Maths Puzzle
Numerical Ability
using -1 as a factor (divide)
(x-4)^2
__________ =
(4-x)^2
thanx
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book Other Question
7. The sum of two numbers is 17 and the sum of their square is 145. Find the larger number.
a. 10 b. 11 c. 8 d. 9 e. none
The answer is D, but how? Please help me prepare for my
Could someone please simplify this problem:
e^x(e^-x+1) - e^-x(e^x+e^+1)