Question

find only circled answer​

Answer 1

1.

${23}^{2} - {7}^{2}$

${a}^{2} - {b}^{2} = (a + b)(a - b)$

= (23+7) (23-7)

= 30 × 16

= 480 Ans.

2. ${36}^{2} - {24}^{2}$

From same identity, we will get -

(36 + 24) (36 - 24)

60 × 12

= 720 Ans.

Hope it helped ❤️

Answer 2

Answer:

10 thanks =30 thanks

Step-by-step explanation:

Breathing: The process of respiration, during which air is inhaled into the lungs through the mouth or nose due to muscle contraction and then exhaled due to muscle relaxation.