Using (a-b)=a³-b³-3ab -(a-b)
100³-1³-3(100)(1)(100-1)
=1000000-1-300(99)
1000000-1-300(99)
1000000-1-29700
=970299
Written on May 1, 2025, 3:40 p.m.
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Answer of this question
Evaluate the following using suitable identity(99)³
vinod kiyalaWe write 99=100-1
Using (a-b)=a³-b³-3ab -(a-b)
100³-1³-3(100)(1)(100-1)
=1000000-1-300(99)
1000000-1-300(99)
1000000-1-29700
=970299
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