. If a –
1
= 8; find : (i) a +
1
(ii) a2 -
1 2
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Answered by
0
Answer:
a-1 = 8
or, a = 8+1 = 9
a+1 = 9+1 = 10
a^2-1^2 = (a+1)(a-1) = (9+1)(9-1) = 10×8 = 80
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Answer:
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