Question

without actually calculating the cubes find the value of (-3 upon 4)cube plus (-5 upon 8)cube plus (11 upon 8)cube

Answer 1

Answer:

by using the identity : a^3 +b^3 + c^3 = 3 abc

3(-3/4)(-5/8)(11/8)

= 495/256

therefore

= 495/256

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Answer 2

Answer:

495/256

,

Step-by-step explanation:

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