Question
(1.05)2−(0.95)2= ___
Answer:
:
Using the identity
(a)2−(b)2=(a+b)(a−b) ,
(1.05)2−(0.95)2
=(1.05+0.95)(1.05−0.95)
=(2)(0.1)=0.2
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:
Using the identity
(a)2−(b)2=(a+b)(a−b) ,
(1.05)2−(0.95)2
=(1.05+0.95)(1.05−0.95)
=(2)(0.1)=0.2
Was this answer helpful ?
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