Question

Mark the INCORRECT option(s) :

(A) If d-e = f and f= d+e then and è are opposite in direction.

(B) If d+ef and f= √2 d; d = e then and e are perpendicular.

(C) If d-e = f and f= d+ e then and ē are in the same direction.

(D) If d+e=f and f= √2 d; d = e then and e are in opposite direction.






More than one options may be correct. If not proper explanation I'll give one star rating ​

Answer 1

D. d+e=Fand f=root 2d

Explanation:

if d+e=f and f=`| 2d; d= e then and e are in opposite direction

Answer 2

Answer:

it should be d

Explanation:

perpendicular and opposite can be measured as 90°{pi/2} and opposite by 180°{pi}

applying vector formulae we get to prove this as incorrect