Math, asked by gumasalaxmi5, 6 months ago

Evaluate of the following using suitable identites (998)³

Answers

Answered by kumarishruti4
4

Answer:

(998)^3=(1000−2)^3

Suitable identities is (x−y)^3=x^3−3x^2y+3xy^2−y^3

∴(1000−2)^3

=(1000)^3−3(1000)^2(2)+3(1000)(2)^2−(2)^3

=1000000000−6000000+12000−8

=994011992

994011992is the answer.......

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Answered by shruti....... ❤️

Answered by Anonymous
2

Answer:

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Step-by-step explanation:

(998)^3=(1000−2)^3

Suitable identities is (x−y)^3=x^3−3x^2y+3xy^2−y^3

∴(1000−2)^3

=(1000)^3−3(1000)^2(2)+3(1000)(2)^2−(2)^3

=1000000000−6000000+12000−8

=994011992

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