Search found 3 matches
Thanks Brent, the first approach is easier for me though a bit tricky. Being able to recognise 1 - 10^-8 as difference of two squares is a bit high level but I now understand it.
Thanks again.
- by [email protected]
Sat Apr 09, 2016 7:40 am- Forum: Problem Solving
- Topic: Arithmetic - Operations on Rational Numbers
- Replies: 5
- Views: 2383
Arithmetic - Operations on Rational Numbers
(0.99999999/1.0001) - (0.99999991/1.0003) = ?
A. 10^-8
B. 3(10^-8)
C. 3(10^-4)
D. 2(10^-4)
E. 10^-4
- by [email protected]
Sat Apr 09, 2016 6:52 am- Forum: Problem Solving
- Topic: Arithmetic - Operations on Rational Numbers
- Replies: 5
- Views: 2383
Algebra - Solving Equations
The explanation to the solution of this question in the OG 2016 is not clear. Please help with a clearer explanation. (X+1/X-1)^2 If X does not equal 0 or 1, and if X is replaced by 1/X everywhere in the above expression, then the resulting expression is equivalent to A. (X+1/X-1)^2 B. (X-1/X+1)^2 C...
- by [email protected]
Sat Apr 09, 2016 6:46 am- Forum: Problem Solving
- Topic: Algebra - Solving Equations
- Replies: 2
- Views: 1263