Answer:
option 2 is correct
Explanation:
the angle between p*q and p+q is 90 degree which is equal to π/2
it is rule that product of two vectors is always perpendicular to the plane in which both the vector lie
Size and Direction
C/100 = (F-32) / 180
or, C/5 = (F-32)/9
relation between any two scales is given by:
(X- lower fixed point ) / (upper fixed point -lower fixed point)
where X is any temperature