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回复: Re: Astrophysics Tuition Available Now!!! lol never knew MATRIX makes this kind of ADs ... xD

回复: Re: MOAR!!!!! binominals thanks namu

回复: Re: MOAR!!!!! binominals hehehe some1 did it the same why as i did :rofl:

When (3+2x)^n is expanded in increasing powers of x, it is found that the coefficients of x^5and x^6 have the same value. find the value of n and show that the 2 coefficients mentioned are greater than all other coefficients in the expansion i got n =23 ( would be nice if u can check for me...

回复: Re: easy stuff thx man.... got 2 the last 3rd step and made an error by copying down r instead of n LOL

回复: question on rates t(150/60) + t(20/10) = 180 solve for t 40min am i wrong?

prove \binom{n}{r}+\binom{n}{r+1}=\binom{n+1}{r+1}

回复: Re: does anyone read 言情小说? oh annie u should do chinese nxt yr in uni with a double degree LOL