Functions

[siddharth11.sharma]

For a three digit number xyz, where x, y and z are the digits of the number, f(xyz) = 5^x2^y3^z. if f(abc)-3 f(def), what is the value of abc-def.

[jnelson0612]

For a three digit number xyz, where x, y and z are the digits of the number, f(xyz) = 5^x2^y3^z. if f(abc)-3 f(def), what is the value of abc-def.

What is the original source of this question and do you have answer choices?

[siddharth11.sharma]

well i m also skeptical about the origin of this ques., but 1 thing i want to know is that, Is this ques. justified.

[tim]

it's actually not even a valid question. you can't say "if" unless there is an equation or inequality following it, and neither of those show up here. the lesson here is this: NEVER study questions you don't know the source of, as they can throw you off and harm your learning!