AP EAMCET Engineering 21 Sep 2020 Shift 1 Paper

Section: Mathematics

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Question : 41 of 160

Marks: +1, -0

Let

→

u

=−2

^

i

+2

^

j

+

^

k

and

→

v

=

^

i

−2

^

j

+2

^

k

. Then angle between

→

u

and

→

v

is ________

Cos−1(
4
9
)
Cos−1(
−4
3
)
Cos−1(
4
3
)
Sin−1(
−4
9
)

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