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Q 2641680523.    

Assertion : Let `A (vec i + vec j + vec k) ` and `B (vec i - vec j + vec k)` be two points, then point `P ( 2 vec i + 3 vec j + vec k)` lies exterior to the sphere with `AB` as one of its deameters

Reason : If `A` and `B` are any two points and Pis a point in space such that `vec(PA) * vec( PB) > 0` , then point ` P` lies exterior to the sphere with `AB` as one of its diameters.

A Both A and R individually true and R is the correct explanation of A
B Both A and R are individually true but R is not the correct explanation of A
C A is true but R is false
D A is false but R is true

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(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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