using identities
(19.8)^2
Answers
Answered by
4
[HEYA!!
WE CAN WRITE (19.8)² as (20-0.2)²
by using( a-b) ² = a² - b² - 2ab
20² - 0.2² - 2×0.2×20
= 391.96
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WE CAN WRITE (19.8)² as (20-0.2)²
by using( a-b) ² = a² - b² - 2ab
20² - 0.2² - 2×0.2×20
= 391.96
yogenderdiwakar:
ur formula is wrong i mean identity
its (a-b) = a^2 - b^2 + 2ab
no check it
wrong answer
Answered by
2
Hello user☺☺
Using the identity of (a-b)^2 , we have
(20 - 0.2)^2
400 + 0.04 - 8
392.04
Using the identity of (a-b)^2 , we have
(20 - 0.2)^2
400 + 0.04 - 8
392.04
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