Find a V vector that is perpendicular to the plane determined by the points P(1,2,3), Q(-1,3,2) and R(3,-1,2) and hence find the area of a triangle.

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

other answer is correct. i had used the radius of the radius somehow. a website: