View Full Version : +rep if ya can help me!
Welllllll i havent done this in like 2weeks and im tired so i can really not remember how to do this.
Put these into surd form:
Put it in the form p/q where q is as small as possible
/ = Square root
1) /867
2) /15 x /21
3) 11/2 x 3/11
4) /9 divided by /3
Thanks guys
PaulMacC
26-02-2008, 06:39 PM
I was doing this a few weeks ago and I cant remember jack.
I was doing this a few weeks ago and I cant remember jack.
that's my problem :'[
HeartRates
26-02-2008, 06:50 PM
If you mean by smallest, e.g keep rounding down, you will get the almost same answer every time.
I have squared one.
1) 29.4448637 (29.4)
Edit: Another
2) 20 (rounded up)
3) 1.5 (rounded up)
If you mean by smallest, e.g keep rounding down, you will get the almost same answer every time.
I have squared one.
1) 29.4448637 (29.4)
Edit: Another
2) 20 (rounded up)
3) 1.5 (rounded up)
note that i said in surd form :<
HeartRates
26-02-2008, 07:31 PM
note that i said in surd form :<
wth is surd lol
brandon
26-02-2008, 07:31 PM
1) /867 = 29.4448637
2) /15 x /21 = 17.7482393
3) 11/2 x 3/11 = do it yourself ;)
4) /9 divided by /3 = 1.73205081
For example on the other bit,
Assuming that it was 18,
the lowest it could be is 17.50 because if not it would round down
the highest it could be is 18.49 so it will round down to 18 still.
I believe that is called upper and lower boundaries :)
1) /867 = 29.4448637
2) /15 x /21 = 17.7482393
3) 11/2 x 3/11 = do it yourself ;)
4) /9 divided by /3 = 1.73205081
For example on the other bit,
Assuming that it was 18,
the lowest it could be is 17.50 because if not it would round down
the highest it could be is 18.49 so it will round down to 18 still.
I believe that is called upper and lower boundaries :)
like i said before, surd form! :[ i could easily work out that way lol. just get a calculator xD
if you dont know what that is, then i dont think u can help me lol. google it.
brandon
26-02-2008, 07:39 PM
like i said before, surd form! :[ i could easily work out that way lol. just get a calculator xD
if you dont know what that is, then i dont think u can help me lol. google it.
I've never heard of surd form. :S It appears neither has HeartRates..
It's basically like /2, it's to express square roots where there isnt any. like the square root of 2, or 7 etc.
HeartRates
26-02-2008, 08:05 PM
your school teaches you too much!
Right, I remember enough to know what surd form is :P
1) 17√3
2) 3√35
3) 32√22
4) √3
your school teaches you too much!well it's only GCSE stuff and im in year 9 lolz.
Right, I remember enough to know what surd form is :P
1) 17√3
2) 3√35
3) 32√22
4) √3
Thanks, all right except 3. 22 wasn't simple enough but it doesn't matter anyway.
Thanks.
Can u figure out; - Expand and simplify
1) (7+/5)Squared
2) (12+/11)(5+/11)
+rep btw.
Eurgh i was no good at those types of questions, sorry i cant help you out :(
Eurgh i was no good at those types of questions, sorry i cant help you out :(bah. damn. ok well there is still 1hour 20mins to help me! :P
Wait a minute, i think the first one of them is 54
Edit:
Ill attempt the second one too
12x5 =60
12x√11 =12√11
√11x5 =5√11
V11X√11 =11
71 + 17√11 I think!!
Wait a minute, i think the first one of them is 54
Edit:
Ill attempt the second one too
12x5 =60
12x√11 =12√11
√11x5 =5√11
V11X√11 =11
71 + 17√11 I think!!
already did em and got em right lol xD
Ahh well done :Pi can do it, i just really didnt have enough focus to be bothered until i had to hehe.
:P I know how you feel, especially when it's surds, an extremely boring topic at the best of times
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