JEE Main 7 Apr 2025 Shift 1 Paper

Section: Mathematics

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Question : 9 of 75

Marks: +1, -0

Let the angle θ,0<θ<‌

π

2

between two unit vectors

∧

a

and

∧

b

be sin‌−1(‌

√65

9

). If the vector

→

c

=3

∧

a

+6

∧

b

+9(

∧

a

×

∧

b

), then the value of 9(

→

c

⋅

∧

a

)−3(

→

c

⋅

∧

b

) is

[7 Apr 2025 Shift 1]

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