using formula a²-b² find value of 1.15×0.85
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5
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Step-by-step explanation:
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Answered by
1
Answer:
.
Step-by-step explanation:
1.15 and 0.85 can be written as
1.15=100+0.15
0.85=100-0.15
Now by using formula
(a+b) (a-b)=a2-b2
(100+0.15) (100-0.15)=100^2-(0.15)^2
=10000-0.0225
=999.9775
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