Use an expansion formula to find the values of (1005)^2 ?
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Answered by
5
(1005)^2
= (1000 + 5)^2
= 1000^2 + 5^2 + 2*5 * 1000
= 1000000 + 25 + 10000
= 1010025
= (1000 + 5)^2
= 1000^2 + 5^2 + 2*5 * 1000
= 1000000 + 25 + 10000
= 1010025
Vijay1977:
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Answered by
3
(a+b)^2=a^2+b^2+2ab..........................
1005^2=1000^2+5^2+2×1000×5
=1010025
1005^2=1000^2+5^2+2×1000×5
=1010025
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