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related to: cbs

1. ### show that if a and b are integers, not both 0, and c is a nonzero integer, then (ca, cb )= lcl (a,b)?

(1) Let d = gcd(a,b). Then d|c| | ca and d|c| | cb , so d|c| is a common divisor of ca and cb and then: |c|gcd(a,b) = d|c...

3 Answers · Science & Mathematics · 04/08/2008

2. ### Use the following matrices to compute CA+ CB ?

CA = 1 6 -4 3 22 -18 6 0 -6 CB = -3 6 -2 -8 19 -6 -27 27 -12 add -2 12 -6 -5 41 -24 -21 27 -18

1 Answers · Science & Mathematics · 02/07/2010

3. ### Prove the theorem: In an isosceles triangle ABC,CA= CB and <C is a right angle.If D is any point on AB...?

... triangle that will create another right angle. Call x=CA= CB . The new segment creates 2 new right triangles one of which...

1 Answers · Science & Mathematics · 31/10/2008

4. ### Let a,b and c be integers with (a,b)=d prove: (a+ cb , b)=(a,b)?

n|a & n|b ⇒n|(a + cb ) n|(a + cb ) & n|b ⇒ n|a So every common factor of a + cb and b is a common factor of a and b; and every common factor of a and b is a common factor of a + cb and b. This implies (a, b) = (a + cb , b) = d.

1 Answers · Science & Mathematics · 01/05/2015

5. ### If a < b then ca < cb ....?

B) -2 Take a = 1, b = 2 ca = -2 cb = -4 -2 > -4 So B is the answer. It would be the opposite of the original equation which is the counter to the example.

9 Answers · Science & Mathematics · 09/01/2008

6. ### linear algebra (show that A+ cB is not invertible)?

Since B is invertible, we have A + cB = (-AB^(-1) - cI) * -B^(-1). So, if we take c to be any...

1 Answers · Science & Mathematics · 04/04/2012

7. ### Solving for T... t=c+ cb when c=13.21 and b= 6%?

t=c+ cb t = c(1+b) t = 13.21(1+.06) t = 14.006i hope this helps!!

7 Answers · Science & Mathematics · 23/06/2010

8. ### Write the vectors AC^↑ and CB ^↑ as linear combinations of the vectors a and c?

...need AO which is –a. ∴ AC = −a+c The other is CB = CO + OB. Because non-position vectors are transportable...

1 Answers · Science & Mathematics · 03/02/2014

9. ### Ray CA and ray CB are opposite rays if...?

Ray CA and ray CB are opposite rays if...? ...if angle ACB is a straight angle. QED

4 Answers · Science & Mathematics · 04/09/2010

10. ### If angle ABC is congruent to angle DEF then is line FE congruent to line CB ?

... it seems as if what you're really asking is if CB = BC and FE = EF. If so, yes, they are congruent...

2 Answers · Science & Mathematics · 13/06/2011