JEE Main 17 March 2021 Shift 1 Solved Paper

Section: Mathematics

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Question : 85 of 90

Marks: +1, -0

If a=α

∧

j

+β

∧

j

+3

∧

k

,b=−β

∧

i

−α

∧

j

−

∧

k

and c=

∧

i

−2

∧

j

−

∧

k

such that a⋅b=1 and b.c=−3, then ‌

1

3

[(a×b)⋅c] is equal to

[17 Mar 2021 Shift 1]

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