if a-1/a=3 then find a^3-1/a^3
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Answer:
a= 63/8
Step-by-step explanation:
a-1/a=3
a-1=3a
-1=3a-a
-1=2a
-1/2=a
a^3-1/a^3
=-1/8 -1/-1/8
=-1/8+8
=8-1/8
=64-1/8
=63/8
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