1.

A-1/a=3, find a^3-1/a^3

Answer»

Answer:

36

Step-by-step EXPLANATION:

(a - 1/a)^3 = a^3-1/a^3 -3 a×1/a(a-1/a)

(3)^3 =a^3-1/a^3-3(3)

27 = a^3-1/a^3-9

27+9 = a^3-1/a^3

36 =a^3-1/a^3



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