I repeated it because of this:
But when 9 is in a square root sign it gives two answers i.e -3 and 3.
I wanted him to be sure that the answer is only 3. 1 answer not 2.
If it ain't broke, fix it until it is.
Thinking is cheating.
Look the link you provided at page 4 concerning the square roots signs.
It says so:
When two numbers are multiplied within a square root, you can split it into a multiplication of two square roots.
But only when X and Y are both greater than or equal to 0.
My question is:
Which figure is equal to zero before the splitting will be possible?
Last edited by EbenezerSon (2013-11-17 20:35:26)
I know only one thing - that is that I know nothing