Just checkin my answer: Express the radical in simplest form: the square root of 1/ 11
A. square root of 11
B. square root of 11/11
C. 1/square root of 11

Question

Just checkin my answer:  Express the radical in simplest form: the square root of 1/ 11
	A. 	square root of 11
	B.	square root of 11/11
	C.	1/square root of 11

anonymous · Answer

I think it's B

istim · Answer

B is wrong...

anonymous · Answer

|dw:1332384722059:dw|

this is what B looks like

unklerhaukus · Answer

$$\sqrt{1\over 11} =\sqrt{1\over 11} \times \sqrt{\frac{{11}} {11}} $$$$= \frac {\sqrt{11}}{11}$$
$$B.$$

anonymous · Answer

I think you're right

anonymous · Answer

Yea i think i'm right too...Istim is wrong

unklerhaukus · Answer

$$B. =C.$$
i think C. is a simpler

anonymous · Answer

@UnkleRhaukus It's usually improper to have a radical in the denominator though.

sqrt(1/11) = sqrt(1)/sqrt(11) = 1/sqrt(11)
Multiply by sqrt(11)/sqrt(11) which is the same as 1.
sqrt(11)/[ sqrt(11) * sqrt(11) ]
Squareroots cancel out.
sqrt(11)/11

Answer is B.

unklerhaukus · Answer

well yeah

unklerhaukus · Answer

$$=11^{-1/2}$$
looks even simpeler to me