Question

Evaluate using suitable identity:a). 103²​

Answer 1

Solution:

• 103^2
• = (100+3)^2
• = (100)^2 + 2(100)(3) + (3)^2
• = 10000 + 600 + 9
• = 10609

Answer:

10609

Answer 2

Answer:

★ Solution :-

$\sf \longmapsto 103^2$

$\sf \longmapsto (a + b)^2 = a^2 + 2ab + b^2$

Here,

• a = 100
• b = 3

$\sf \longmapsto (100 + 3)^2 = 100^2 + 2(100)(3) + 3^2$

$\sf \longmapsto 100^2 + 2(100)(3) + 3^2$

$\sf \longmapsto 10000 + 600 + 9$

$\sf \longmapsto 10609$