Question

Question 3
If 9.78 x 10.05 is calculated as 9.8 x 10.1, then % error is​

Answer 1

Answer:

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Answer 2

Answer:

9.8 × 10.2

= ( 10 – 0.2) ( 10 + 0.2)

Using identity : ( a + b) ( a - b) = a² - b²

➡️(10)² – (0.2)²

➡️100 – 0.04

➡️99.96

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