Evaluate using identities (a) 103 *97 (b) (0.99)² (c) (105)³
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Answered by
7
You can find by (100+3)(100-3) by (a+b)(a-b) is equal to a square - b square....Then you will get answer...
Answered by
10
(x+a)(x+b) = x^2+(a+b)x+a×b
(100+3)(100-3) =(100)^2+(3-3)100+3×-3
=10000+0-9
=9991
(100+3)(100-3) =(100)^2+(3-3)100+3×-3
=10000+0-9
=9991
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