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I need some help with some maths problems. Actually I am sorta of confused.

My Questions:

1. Rewrite without rational exponents, and simplify, if possible.

a. y^(1/7)...... I am so confused what it is about. I mean I can't do anything with the expressions, can I?

b. (x^2.y^2)^(1/3)...... kinda of similar to above one but wat am I supposed to do with expression....

2. Rewrite with positive exponents.

a. y^(-1/7)........ Am I supposed to just change the sign of power to +ve??

3. Use rational exponents to simplify. Write the answer in radical notation if appropriate.

a. (a^2)^(6).........

4. Find domain of f(x)= (x+5)^(1/2). (x+7)^(-1/2) hints badly needed...

I have test tomm so pls reply ASAP. Don't solve it right away but provide me with hints pls.

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# Homework Help: Some Maths Problems

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