simplify using only positive exponents. do not rationalize the denominator.$$[(\frac1{x^{-2}})+(\frac4{x^{-1}y^{-1}})+(\frac1{y^{-2}})]^{-1/2}$$

Question

turingtest · Answer

please use parentheses to clarify

turingtest · Answer

...put exponents and denominators in parentheses

turingtest · Answer

is it supposed to be$$[(\frac1{x^{-2}})+(\frac4{x^{-1}y^{-1}})+(\frac1{y^{-2})}]^{-1/2}$$?

anonymous · Answer

yes

turingtest · Answer

is it supposed to be$$[(\frac1{x^{-2}})+(\frac4{x^{-1}y^{-1}})+(\frac1{y^{-2}})]^{-1/2}$$?I mean
ok that's a "yes"....

turingtest · Answer

in the future you should type this as
[(1/[x^(-2)])+(4/[x^(-1)y^(-1)])+(1/[y^(-2)])]^(-1/2)
or better yet learn LaTeX ;)

turingtest · Answer

I shall fix your post for you and let someone else help you...

anonymous · Answer

ok:) thanks

turingtest · Answer

utilize the rule$$\huge x^{-a}=\frac1{x^a}$$