If x = –3, y = –4and z = 5, then what will be the value of x^3 + y^3 + z^3?

RRB NTPC Prelims Model Paper 2 with solutions

Question : 56 of 101

Marks: +1, -0

x = –3, y = –4

and z = 5, then what will be the value of

x^3 + y^3 + z^3?

Solution:

(3)

x^3 + y^3 + z^3 = (–3)^3 + (–4)^3 + 5^3= – 27 – 64 + 125 = 34

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