How do I do the following question a/b means (a divide by b)
Hi,
Do read the examples in your text to complete these routine problems. Thanks!
Cheers,
Wen Shih
Originally posted by EMC2222:How do I do the following question a/b means (a divide by b)
Simplify each of the following:
A.
(18u^2-30u) / (35-21u)
B.
(35st^5) / (40s^2t^3u)
C.
(1+[a+1 / a-1]) / (1-[a+1 / a-1])
I am not going to give you the answers here, but next time you meet such questions, you can try factorising both the numerator and the denominator first.
This way, it will be easy for you to perform elimination.
As for Question C, Try to simplify the mini fractions in the numerator and the denominator first, so that you could easily see what can be eliminated.
C can use (a + b)(a-b) = A^2 - B^2