-( s +1) ( s ^2 + 4s +7) - ( -2s - 2) ( s ^2 + 4s + 6)^2 = -( s +1) ( s ^2 + 4s +7) +2( s + 1) ( s ^2 + 4s + 6)^2... = -( s ^2 + 4s + 7) + 2 ( s ^2 + 4s +6)^2 = -( s ^2 + 4s + 6 + 1) + 2 ( s ^2 + 4s +6)^2 = 2 ( s ^2 + 4s +6)^2 - ( s ^2 + 4s +6) - 1 s ^2 + 4s...

1 Answers Â· Science & Mathematics Â· 19/03/2010

The boundary of S can be decomposed into 4 parts; a segment from (0,0,0) to (4,0,0...from (0,4,Ï€/2) to (0,0,Ï€/2) and another segment from (0,0,Ï€/2) to (0,0,0): Î´( S ) = L1 U L2 U L3 U L4 L1...

1 Answers Â· Science & Mathematics Â· 16/06/2010

A. Fe2O3( s ) with 2Fe+3' s takes 6 electrons --> 2Fe( s ...s) --> CO2(g) & 4 e- electrons balance as 2Fe2O3( s ) & 12 e- --> 4Fe( s ) 3C( s ) --> 3CO2(g) & 12 e...

1 Answers Â· Science & Mathematics Â· 29/10/2011

The s ^2 denotes a repeated factor of the linear factor s . ==> 100/[ s ^2 ( s + 5)] = A/ s + B/ s ^2 + C/( s + 5) for some A,B,C. To...

1 Answers Â· Science & Mathematics Â· 17/05/2010

S (20, 3) = S (19, 2) + 3 S (19, 3) = S (18, 1) + 2 S (18, 2) + 3 S (18, 2) + 9 S (18, 3) = S ...2) + 81 S (16, 3) = 25 + 65 S (16, 2) + 81 S (16, 3) = ... You got the idea now? ...

2 Answers Â· Science & Mathematics Â· 16/11/2010

sin s = 3/5 : sin^2 s = 9/25: 1 - cos^2 s = 9/25: cos s = sqrt(1 - 9/25) cos s = 4/5 positive because cos...13 negative because cos is negative in 3rd Q sin( s + t) = sin s cos t + cos s sin t (3/5) (- 5/13) +(4/5)( -12/13...

3 Answers Â· Science & Mathematics Â· 19/12/2008

... s ^6 - 729 = (sÂ²)Â³ - 9Â³ = (sÂ² - 9)( s ^4 - 9sÂ² + 81 ) = ( s - 3)( s + 3)( s ^4 - 9sÂ² + 81 )

1 Answers Â· Science & Mathematics Â· 03/04/2011

Let S be nonempty and inf S = sup S . Then there exists at least...contradiction that there exists x, y in S where x =/= y. Then inf S <= x,y <= sup S is clear for any ...

3 Answers Â· Science & Mathematics Â· 08/02/2012

s = -u/(z - x) or s = (x - u)/z the answer depends on whether s is under u or (x-u)

2 Answers Â· Education & Reference Â· 02/10/2011

... recall correctly, that will help proving two triangles congruent s - s - s - side side side If the 3 sides of a triangle is congruent...

10 Answers Â· Science & Mathematics Â· 05/01/2008