The sum and difference of two non zero vectors are A=(Axi + Ayj + Azk) and B=(Bxi + Byj +Bzk) are perpendicular to each other. show that the magnitude of the two vectors are equal.

c. newton's third law of motion

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.