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Byju's Answer
Standard XII
Mathematics
Equal Vectors
258.Given a v...
Question
258.Given a vector A-31-4). Which of thefollowing is perpendicular to it ?(A) 3i(B) 4j(C) 4i+3)(D) 3i +4j
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Q.
Consider a F=4i-3j.Another vector perpendicular of F is
(1) 3i-4j or (2) k cap
Q.
(i) Let
a
→
=
i
^
+
4
j
^
+
2
k
^
,
b
→
=
3
i
^
-
2
j
^
+
7
k
^
and
c
→
=
2
i
^
-
j
^
+
4
k
^
.
Find a vector
d
→
which is perpendicular to both
a
→
and
b
→
and
c
→
·
d
→
=
15
.
(ii) Let
a
→
=
4
i
^
+
5
j
^
-
k
^
,
b
→
=
i
^
-
4
j
^
+
5
k
^
and
c
→
=
3
i
^
+
j
^
-
k
^
. Find a vector
d
→
which is perpendicular to both
c
→
and
b
→
and
d
→
.
a
→
=
21
.
Q.
If
¯
¯
¯
a
=
4
¯
i
+
5
¯
j
−
¯
¯
¯
k
,
¯
¯
b
=
¯
i
−
4
¯
j
+
5
¯
¯
¯
k
and
¯
¯
c
=
3
¯
i
+
¯
j
−
¯
¯
¯
k
, then find vector
¯
¯
¯
d
which is perpendicular to both
¯
¯
¯
a
,
¯
¯
b
and
¯
¯
¯
d
.
¯
¯
c
=
21
Q.
→
O
A
=
3
i
+
4
j
+
12
k
,
→
O
B
=
12
i
+
3
j
+
4
k
,
→
O
C
=
4
i
+
12
j
+
3
k
.
Find the unit vector perpendicular to
→
O
A
and
→
O
B
Q.
If a vector
2
i
+
3
j
+
8
k
is perpendicular to the vector
4
i
−
4
j
+
a
k
, then the value of
a
is
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