JEE MATHEMATICS MCQ: ADDITION OF VECTORS

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Analyzing +4 | -1

In a quadrilateral

P Q R S, \mathbf{P Q}=a, \mathbf{Q R}=b

\mathbf{S P}=a-b

. IfM is the mid-point of

Q R

and

X

is a point of

S M

such that,

S X=\frac{4}{5} S M

, then

View answer and explanation

Correct option: B

\mathbf{P X}=\frac{3}{5} \mathbf{P R}

Option B is correct because by expressing the vectors in terms of position vectors and using the given ratios, PX simplifies to (3/5)PR.

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AD

ABC

E,\;BE

AC

F

AF:AC =