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

20 Points! How can multiple representations of a system be graphed and how are you able to compare their key features?

Marcia is 1.5 meters tall. she casts a shadow that is 2 meters long. a nearby building casts a shadow that is 24 meters long. how tall is the building? (hint: u

Name the parts of speech found in the following sentence: During Christmastime, the man and his small family took their yearly trip to New York to see it while

SOMEONE PLEASE HELP, ILL GIVE WHATEVER YOU WANT!!!The coordinate plane below represents a community. Points A through F are houses in the community. graph of c

What does... "You can't listen to what you relive in dreams" mean?

what are the solutions to 6x^2-5x-4=0

what level of structural organization do voltage-gated sodium channels in muscle sarcolemma represent

is 5y=x+ (1 over 3) proportional?

A circle has a radius of about 12mm. which measurement is closest to the circumference of the circle? a 37.7 mm b 75.4 mm

romans became christians for all reasons except what? Question 3 options: The religion offered comfort in times of trouble. They could still keep their same Rom