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### Suppose a/

**b**=**s**/**t**where a,**b**,**s**,**t**are natural numbers and gcd(a,**b**)=gcd(**s**,**t**)=2. Prove a =**s**and**s**=**t**.?**I**think you might mean that**b**=**t**(not**s**=**t**) In that case, let a = 2...only time**s**could equal**t**is if**s**=**t**=a=**b**=2, leading to 2/2 = 2/2... with the supplied info [**i**.e., you never used gcd(a,**b**...2 Answers · Science & Mathematics · 19/02/2007

...a common factor. Factoring it out gives (c - d)(

**t**+**s**) OR (**t**+**s**)(c - d) Answer:**b**17 Answers · Science & Mathematics · 25/02/2009

Let D = (C -

**s**· A -**t**·**B**) = (2-**s**-2t)**i**+ (-1-**s**+**t**)j + (4-**s**-**t**)k If two vectors are perpendicular...1 Answers · Science & Mathematics · 02/02/2008

**I**'m assuming that'**s**the vertex form... First you have the vertex formula(-**b**/2a) Plug the -6 to the**b**and divide by 2(1)<---you don'**t**have a number in front of the x so it...6 Answers · Science & Mathematics · 06/09/2013

a) 13! / (2! * 3!) = 79,833,600

2 Answers · Science & Mathematics · 20/05/2008

...that if you *fix* particular values of

**S**and**T**, and maybe**I**will write them in lowercase ... thinking: in general, if**S**and**T**are related in some ...1 Answers · Science & Mathematics · 18/04/2011

... (XY)^

**T**= Y^**T**X^**T**1. (**B****B**^**T**)^**T**= (**B**^**T**)^**T****B**^**T**=**B****B**^**T**...2 Answers · Science & Mathematics · 28/05/2012

...: e^(ia - ib) = e^(ia) * e^(-ib) = [cos(a) +

**i**sin(a)] * [cos(-**b**) +**i**sin(-**b**)] (Euler'**s**Formula) = [cos(a) +**i**sin(a)] * [cos(**b**) -**i**sin(**b**)] = cos(a)cos(**b**) -**i***cos...4 Answers · Science & Mathematics · 10/02/2010

If F(

**t**) = integral from a(**t**) to**b**(**t**) of f(**s**) ds then F'(**t**) = da(**t**)/dt * f(a(**t**)) - d(**b**(**t**))/dt* f(**b**(**t**...2 Answers · Science & Mathematics · 21/01/2016

...bsx. Then, reducing mod

**s**yields n = a * 1 + 0 = a (mod**s**) and reducing mod**t**yields n = 0 +**b*** 1 =**b**(mod**t**).**I**hope this helps!1 Answers · Science & Mathematics · 16/09/2010