TS EAMCET 03 May 2019 Shift 1 Solved Paper

Section: Mathematics

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Question : 34 of 160

Marks: +1, -0

The acute angle between

→

r

= (−

^

i

+3

^

k

) + λ(2

^

i

+3

^

j

+6

^

k

) and

→

r

.(10

^

i

+2

^

j

−11

^

k

) = 3 is

sin−1(
8
21
)
cos−1(
8
21
)
sin−1(
5
21
)
cos−1(
5
21
)

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