Seja A = (aj) a matriz quadrada de 20 ordem, definida por i^2, se i = j
ajj = 5i - 7j, se i>j
3i - j, se i < j

Nestas condições a soma dos elementos da transporta da inversa de A é igual:

A. 0
B. -1
C. 2
D. 1
E. -2

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

In the given figure ar(adf) =ar(cda) and ar(cdf) = ar(cdf). show that abdc and cdfe are trapeziums.

Agraphic designer created a logo on eight and a half by 11 inch paper. in order to be placed on a business card, the logo needs to be one and 7/10 inches by 2 and 1/5 in. what is the scale factor of the dilation