I need help with these problems:
#1. Rationalize the denominator 2 over the square root of 2
#2. the square root of 5 over 18
#3. 3 over the cubed root of 2
#4. 4 over the cubed root of 8x to the 2nd power.
2006-09-05 10:01:49 · 5 answers · asked by psxfff123 3 in Education & Reference ➔ Homework Help
1.2/rt2
multiply both Nr and Dr by rt2
=2 rt 2/2
cancelling the 2 the answer is rt 2
2.rt 5/rt 18=rt 5/3 rt 2
multiplying the Nr and Dr by rt 2
rt 10/6
3.3/cube rt 3
multiplyin the Nr and Dr by 3^2/3
3(3)^2/3/3
cancelling the 3 the answer is 3^2/3
4.4/cube rt of 8x^2
4/2*(x^2/3)
rationalising the denominator
2x^1/3/x is the answer
2006-09-05 10:13:16 · answer #1 · answered by raj 7 · 0⤊ 0⤋
#1 Multiply by Sqrt2/sqrt2 and you get sqrt2
#2 Already rational
#3 3*cubed root of 2 squared over 2
#4 cubed root of 8x over 2x
2006-09-05 17:07:23 · answer #2 · answered by odu83 7 · 0⤊ 0⤋
All of these questions can be answered with a calculator. If you are in desperate need of help in Math then you probably need to hire a tutor.
2006-09-05 17:10:36 · answer #3 · answered by Amber W 1 · 0⤊ 0⤋
ya dude..these are super easy..you shuldnt be in college..im in highschool and did these last year
2006-09-05 17:09:10 · answer #4 · answered by Anonymous · 0⤊ 0⤋
no, I am a freshman in highschool, and I can figure these out - If you are in collage, you should be just fine figuring it out on your own.
2006-09-05 17:06:09 · answer #5 · answered by I Love Yeshua 2 · 0⤊ 0⤋