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Chapter 11
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Quiz
Class XII
Chapter 11 : Mixed practice
12 questions
Question 1 of 12
Score:
0
/ 0
Direction cosines of
i
^
+
j
^
+
k
^
\hat i + \hat j + \hat k
i
^
+
j
^
+
k
^
are
A
(
1
,
1
,
1
)
(1,1,1)
(
1
,
1
,
1
)
B
(
1
/
3
,
1
/
3
,
1
/
3
)
(1/\sqrt 3,1/\sqrt 3,1/\sqrt 3)
(
1/
3
,
1/
3
,
1/
3
)
C
(
1
/
3
,
1
/
3
,
1
/
3
)
(1/3,1/3,1/3)
(
1/3
,
1/3
,
1/3
)
D
(
0
,
0
,
0
)
(0,0,0)
(
0
,
0
,
0
)
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