JEE MATHEMATICS MCQ: 2D GEOMETRY SYSTEM

1 Easy

1 of 1

Application +4 | -1

O

is the origin and

P\left(x_1, y_1\right), Q\left(x_2, y_2\right)

are two points, then

O P

OQ

\cos \angle P O Q

View answer and explanation

Correct option: A

x_1 x_2+y_1 y_2

Option A (

x_1 x_2+y_1 y_2

) is correct because it represents the dot product of the vectors OP and OQ.

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