Q.1 If a = 3i - j-4k, b= -2i + 4j- 3k and c =i+ 2j-k. %3D Find unit vector parallel to 3 a -2 b +4 c.

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Q.1
If a = 3i - j- 4k, b= - 2i + 4j- 3k and c =i+ 2j-k.
Find unit vector parallel to 3 a -2 b +4 c .
Find the vector whose magnitude is 5 and which is in the direction
of the vector 4i - 3j + k.
Q.2
For what value of m, the vector 4i + 2j - 3k and mi – j+ 3 k
have same magnitude?
Given the points A (1, 2, - 1), B = (-3, 1, 2) and C = (0, -4, 3)
() find AB, BС, АС
Find the lengths of the sides of a triangle, whose vertices are
A = (2, 4, -1), B = (4, 5, 1), C = (3, 6, -3) and show that the
triangle is right angled.
Q.3
Q.4
(ii) Show that AB + BC = AC
Q.5
Q.6
If vectors 3i + j -k and 2 i - 4j + 4k are parallel, find the value
of 1.
27
Q.7
Show that the vectors 4i – 6j + 9k and -6i+9j -k are parallel.
2
Find real numbers x, y and z such that
(a)
(b)
Q.8
7xi + (y- 3)j + 6k = 10i + 8j – 3zk
(x + 4)i + (y- 5)j + (z - 1)k 0
Transcribed Image Text:Q.1 If a = 3i - j- 4k, b= - 2i + 4j- 3k and c =i+ 2j-k. Find unit vector parallel to 3 a -2 b +4 c . Find the vector whose magnitude is 5 and which is in the direction of the vector 4i - 3j + k. Q.2 For what value of m, the vector 4i + 2j - 3k and mi – j+ 3 k have same magnitude? Given the points A (1, 2, - 1), B = (-3, 1, 2) and C = (0, -4, 3) () find AB, BС, АС Find the lengths of the sides of a triangle, whose vertices are A = (2, 4, -1), B = (4, 5, 1), C = (3, 6, -3) and show that the triangle is right angled. Q.3 Q.4 (ii) Show that AB + BC = AC Q.5 Q.6 If vectors 3i + j -k and 2 i - 4j + 4k are parallel, find the value of 1. 27 Q.7 Show that the vectors 4i – 6j + 9k and -6i+9j -k are parallel. 2 Find real numbers x, y and z such that (a) (b) Q.8 7xi + (y- 3)j + 6k = 10i + 8j – 3zk (x + 4)i + (y- 5)j + (z - 1)k 0
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