Math, asked by 90kumarrajinder, 4 months ago

10.2)² - (9.8)² use suitable identity

Answers

Answered by SmileDonarPriyu

2

Answer:

The Answer is:- 8

Step-by-step explanation:

Step 1:- (10.2)^2 - (9.8)^2

Step 2:- (104.04) - (96.04)

Step 3:- 8

Answered by iwillwin

1

Answer:

8

Step-by-step explanation:

identity: a²-b²= (a + b) (a-b)

(10.2 +9.8) (10.2-9.8)

= 20 × 0.4

= 8

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