Evaluate the following using suitable identities: (998)^3
Evaluate the following using suitable identities:
(998)3
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(998)3= (1000 − 2)3
= (1000)3 − (2)3 − 3(1000) (2) (1000 − 2)
= 1000000000 − 8 − 6000(998)
= 1000000000 − 8 − 5988000
= 1000000000 − 5988008
= 994011992
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