using suitable identities ans 1)103×96 2)102×106 3)994×1006
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(103)(96) = (
2.
using the identity
x2+(a+b)x+ab
(100+2)(100+6)
100= x
2=a
6=b
ans- 10812
3.
994x1006
(1000-6)(1000+6)
using (a+b)(a-b) = a^2 - b^2
= (1000)^2 - (6)^2
= 1000000 - 36
= 999964
2.
using the identity
x2+(a+b)x+ab
(100+2)(100+6)
100= x
2=a
6=b
ans- 10812
3.
994x1006
(1000-6)(1000+6)
using (a+b)(a-b) = a^2 - b^2
= (1000)^2 - (6)^2
= 1000000 - 36
= 999964
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