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

The set of ordered pairs in the mapping below can be described as which of the following? x----y0 - 83 - 26 - -1(1) a relation only(2) a function only(3) both a

in lord of the flies how did the boys’ environment contribute to their actions? Are they animals?

why are units of measurement useful?

Which time is an example of a secondary source

Please help me with this word problem.

Please help!!! Need 20 mins before overdue

Which of the following drains urine from the kidneys to the bladder?

Al(OH)3 + 3 HCl = AlCl3 + 3 H2OSome brands of antacid tablets have used aluminum hydroxide to neutralize excess acid, as shown above. How many grams of HCl can

31*20 hey can u help me solve this problem for me.[tex] [/tex]

Which point of view reports the thoughts and actions of one character at a time and uses the pronouns “he,” “she,” and “they”? A. third-person omniscient B. sec