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Chapter 11
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Angle between two lines and special positions
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Quiz
Class XII
Quick check : Angle between two lines
6 questions
Question 1 of 6
Score:
0
/ 0
Angle between lines is given by
A
sin
θ
=
∣
d
⃗
1
⋅
d
⃗
2
∣
/
(
∣
d
⃗
1
∣
∣
d
⃗
2
∣
)
\sin\theta = |\vec d_1 \cdot \vec d_2|/(|\vec d_1||\vec d_2|)
sin
θ
=
∣
d
1
⋅
d
2
∣/
(
∣
d
1
∣∣
d
2
∣
)
B
cos
θ
=
∣
d
⃗
1
⋅
d
⃗
2
∣
/
(
∣
d
⃗
1
∣
∣
d
⃗
2
∣
)
\cos\theta = |\vec d_1 \cdot \vec d_2|/(|\vec d_1||\vec d_2|)
cos
θ
=
∣
d
1
⋅
d
2
∣/
(
∣
d
1
∣∣
d
2
∣
)
C
tan
θ
=
.
.
.
\tan\theta = ...
tan
θ
=
...
D
Just
d
⃗
1
⋅
d
⃗
2
\vec d_1 \cdot \vec d_2
d
1
⋅
d
2
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