Question

√7.92-4.6 with regard to significant figure
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Answer 1

Answer:

Class 11

PHYSICS

PHYSICAL WORLD AND MEASUREMENT

solve with due regard to significant figures: sqrt(6.5 - 6.32)

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Updated On: 17-6-2020

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Answer 2

(12.1)²(7.9)²

(12.1)²(7.9)²Using,

(12.1)²(7.9)²Using,a²b² = (a + b)(a - b) we get,

(12.1)²(7.9)²Using,a²b² = (a + b)(a - b) we get,= (12.1 + 7.9) (12.1 – 7.9)

(12.1)²(7.9)²Using,a²b² = (a + b)(a - b) we get,= (12.1 + 7.9) (12.1 – 7.9)= 20 × 4.2

20 × 4.2= 84.