Q.The unit vectors along the three co-ordinate axes are related as i=j=k=0 *
a)i=j=k=0
b)i=j=k=1
c)i>j>k>1
d)i= -j= k= 1
Answers
Answered by
0
Answer:
Correct option is
A
sin
−1
(
3
1
)
(
i
^
+
j
^
+
k
^
).(
i
^
+
j
^
)=(
3
)(
2
)cosθ
(1+1)=(
3
)(
2
)cosθ
cosθ=
3
2
θ=cos
−1
(
3
2
)
Using formula, cos
−1
x=sin
−1
(
1−x
2
) we will get,
θ=sin
−1
(
1−
3
2
)=sin
−1
(
3
1
)
Explanation:
you have to solve like this but this is not correct answer
Answered by
0
Answer:
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Explanation:
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