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Using identity, evaluate 1.05 ✖ 9.5

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Using identity, evaluate 1.05 ✖ 9.5

Posted by Siddhi Gahlot 6 years, 4 months ago

CBSE > Class 08 > Mathematics

2 answers

Yogita Ingle 6 years, 4 months ago

(a - b)(a +b) = a² - b²
10.5 × 9.5 = (10+ 0.5) (10 - 0.5)
= (10)² - (0.5)²
= 100 - 0.25
= 99.75

0Thank You

Navya Sree 6 years, 4 months ago

(1.05)(9.5) (1.05)(0.95)*10 (a+b)(a-b) (1square -(0.05)square*10 (1-0.0025)*10 (0.9975)*10 9.975

1Thank You

ANSWER

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CBSE > Class 08 > Mathematics