Using identity solve:
1.05*9.5
Answers
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0
9.975
It is the answer
swiftangel90:
Please tell using identity
Answered by
1
Solution :
**************************************
We know the algebraic identity :
( a + b )( a - b ) = a² - b²
**************************************
Now ,
10.5 × 9.5
= ( 10 + 0.5 )( 10 - 0.5 )
= 10² - ( 0.5 )²
= 100 - 0.25
= 99.75
••••
**************************************
We know the algebraic identity :
( a + b )( a - b ) = a² - b²
**************************************
Now ,
10.5 × 9.5
= ( 10 + 0.5 )( 10 - 0.5 )
= 10² - ( 0.5 )²
= 100 - 0.25
= 99.75
••••
Question is 1.05×9.5
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