Question

Find each of the following. a = 5i - 2j + 3k b = 2j - k (a) a + b 5 Correct: Your answer is correct. i + 0 Correct: Your answer is correct. j + 2 Correct: Your answer is correct. k (b) 4a + 5b 20 Correct: Your answer is correct. i + 2 Correct: Your answer is correct. j + 7 Correct: Your answer is correct. k (c) | a | Correct: Your answer is correct. (d) | a - b

Name: find each of the following a 5i 2j 3k b 2j k a a b 5 correct your answer is correct i 0 correct your answer is correct j 2 correct your answer is correct k b 4a 5b 20 correct your answer is 68439
Uploaded: 2022-01-27T22:30:04-08:00
Duration: 1 min 31 s
Channel: Kajal Raghubanshi
Description: find each of the following a 5i 2j 3k b 2j k a a b 5 correct your answer is correct i 0 correct your answer is correct j 2 correct your answer is correct k b 4a 5b 20 correct your answer is 68439

          Find each of the following.
a = 5i - 2j + 3k
b = 2j - k
(a) a + b
5
Correct: Your answer is correct.
 i + 
0
Correct: Your answer is correct.
 j + 
2
Correct: Your answer is correct.
 k
(b) 4a + 5b
20
Correct: Your answer is correct.
 i + 
2
Correct: Your answer is correct.
 j + 
7
Correct: Your answer is correct.
 k
(c) | a |
  
Correct: Your answer is correct.
(d) | a - b

Added by Cassandra J.

Calculus: Early Transcendentals

James Stewart 8th Edition

Instant Answer

Solved by Expert Kajal Raghubanshi

01/27/2022

Step 1

Step 1: To find |a|, we use the formula for the magnitude of a vector: |a| = √(5^2 + (-2)^2 + 3^2) |a| = √(25 + 4 + 9) |a| = √38 Show more…

Show all steps

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Find each of the following. a = 5i - 2j + 3k b = 2j - k (a) a + b 5 Correct: Your answer is correct. i + 0 Correct: Your answer is correct. j + 2 Correct: Your answer is correct. k (b) 4a + 5b 20 Correct: Your answer is correct. i + 2 Correct: Your answer is correct. j + 7 Correct: Your answer is correct. k (c) | a | Correct: Your answer is correct. (d) | a - b