Search found 6 matches
- by kellymichaelsohhh
Sun May 24, 2015 10:42 pm- Forum: GMAT Math
- Topic: Need help
- Replies: 1
- Views: 1756
Can I ask you another question? Do you know how to calculate log without using calculator? For example: log(0.025) You won't be required to perform any log calculations on the GMAT. The closest to this would be a question that required us to find some approximate exponent. For example: If 10^x = 0....
- by kellymichaelsohhh
Wed May 20, 2015 5:52 pm- Forum: GMAT Math
- Topic: Can anyone help me to solve the question?
- Replies: 8
- Views: 3252
Given that the equation f(x) + xf(1-x) = x holds for every real number x. The value of f(-1) + f(1) is .... (A) -1 (B) 0 (C) 1/3 (D) 1 (E) 4/3 let's start with x = 0 The given info tells us that f(x) + xf(1-x) = x So, f(0) + 0f(1-0) = 0 Simplify to get: f(0) + 0 = 0 This means that f(0) = 0 Now try...
- by kellymichaelsohhh
Wed May 20, 2015 5:02 pm- Forum: GMAT Math
- Topic: Can anyone help me to solve the question?
- Replies: 8
- Views: 3252
Given that the equation f(x) + xf(1-x) = x holds for every real number x. The value of f(-1) + f(1) is .... (A) -1 (B) 0 (C) 1/3 (D) 1 (E) 4/3 let's start with x = 0 The given info tells us that f(x) + xf(1-x) = x So, f(0) + 0f(1-0) = 0 Simplify to get: f(0) + 0 = 0 This means that f(0) = 0 Now try...
- by kellymichaelsohhh
Wed May 20, 2015 5:02 pm- Forum: GMAT Math
- Topic: Can anyone help me to solve the question?
- Replies: 8
- Views: 3252
I'm not sure but the question was written exactly like what i post[email protected] wrote:Hi kellymichaelsohhh,
Are there any typos in this prompt? Is the "extra X" in the phrase "xf(1-x)" supposed to be there?
GMAT assassins aren't born, they're made,
Rich
- by kellymichaelsohhh
Tue May 19, 2015 10:22 pm- Forum: GMAT Math
- Topic: Can anyone help me to solve the question?
- Replies: 8
- Views: 3252
Can anyone help me to solve the question?
Given that the equation f(x) + xf(1-x) = x holds for every real number x. The value of f(-1) + f(1) is ....
(A) -1
(B) 0
(C) 1/3
(D) 1
(E) 4/3
- by kellymichaelsohhh
Tue May 19, 2015 9:10 pm- Forum: GMAT Math
- Topic: Can anyone help me to solve the question?
- Replies: 8
- Views: 3252