HARD
JEE Main
IMPORTANT
Earn 100

In a regular hexagon , , where is equal to
(a)
(b)
(c)
(d)None of these

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Important Questions on Introduction to Vectors
MEDIUM
JEE Main
IMPORTANT
If and and , then the angle between and is

HARD
JEE Main
IMPORTANT
If the sum of two unit vectors is a unit vector, then the magnitude of their difference is

EASY
JEE Main
IMPORTANT
The position vectors of the points , and are , and , respectively. If is chosen as the origin, then the position vectors of and are

MEDIUM
JEE Main
IMPORTANT
The orthocentre of an equilateral triangle is the origin . If , and , then is equal to

MEDIUM
JEE Main
IMPORTANT
If the position vectors of and are and , respectively, then the cosine of the angle between and -axis is

EASY
JEE Main
IMPORTANT
The non-zero vectors , and are related by and , the angle between and is

EASY
JEE Main
IMPORTANT
The unit vector bisecting (representing -axis) and (representing - axis) is

MEDIUM
JEE Main
IMPORTANT
A unit tangent vector at on the curve , and is
