aleahspitzley30661 aleahspitzley30661

01-02-2018
Mathematics

contestada

For what values of a are v = a i − j + k and w = a i + a j − 3 k perpendicular? give exact values.

Respuesta :

sqdancefan sqdancefan

08-02-2018

The vectors are perpendicular when their dot product is zero. That is
.. a^2 -a -3 = 0
.. (a -1/2)^2 -13/4 = 0
.. a = (1 ±√13)/2

Answer Link

Otras preguntas

Please help me this is 50% of my grade

What moves electrons in a circuit? a. water b. electrical forces c. nuclear forces d. two of the above e, none of the above

The countries of Central and Southwest Asia are united by several characteristics and divided by others. What are some characteristics that unite the countries

what do you pore first the cereal or the milk? True or false.

There appear to be cultural differences in personality. Compared to babies in the United States and Canada, Asian babies have been found to

What percent of 3/4 is 3/8 ? (Round to the nearest whole percent)

AABC - DEF. What sequence of transformations will move A ABC onto A DEF? 10 8 A(0.4) B(0,0) C(3.0) -10 -8 -6 -4:1-2 6 8 10 -2D(0.2) 24 8 -10 E(0.-10) F( 6-10)

Which value is a solution of the equation 8y=56?

Big brutus pizza had two deals on pizza the first was $6 for a cheese pizza plus $3 for each topping the second deal was $20 per cheese pizza and 1 dollar per t

Is there any rebels here......