Question

plz solve will mark as brainliest​

Answer 1

we know....(a-1/a)^3= a^3-1/a^3-(3*1*(a-1/a)

or. 4^3= a^3-1/a^3-12

or......a^3-1/a^3= 64+12 = 76

answer is 76

Answer 2

hope this answer helps you and plz mark it as the Brainliest