WBJEE 2016 Math Solved Paper

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Question : 46 of 75

Marks: +1, -0

Let Q = (

cos

π

4

−sin

π

4

sin

π

4

cos

π

4

) and x = (

1

√2

1

√2

) then Q3x is equal to

(
0
1
)
(
1
√2
1
√2
)
(
−1
0
)
(
1
√2
−
1
√2
)

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