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Tardigrade
Question
Mathematics
If θ denotes the acute angle between the line vecr = (( hati + 2 hatj - hatk ) + λ( hati - hatj + hatk) and the plane vecr ⋅(2 hati - hatj + hatk ) = 4, then sin θ + √2 cos θ =
Q. If
θ
denotes the acute angle between the line
r
=
((
i
^
+
2
j
^
−
k
^
)
+
λ
(
i
^
−
j
^
+
k
^
)
and the plane
r
⋅
(
2
i
^
−
j
^
+
k
^
)
=
4
,
then
sin
θ
+
2
cos
θ
=
1930
234
Introduction to Three Dimensional Geometry
Report Error
A
1/
2
0%
B
2
−
1
0%
C
2
50%
D
1
+
2
50%
Solution:
Correct answer is (c)
2