23. If a-1/a = 3, find the value of a²-1/a²
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Answer:-3
Step-by-step explanation:
a-1/a=3
a-1=3a
2a=-1
a=-1/2
We need a^2-1/a^2
Replacing the value of a with -1/2
((1/4)-1)/(1/4)
On Simplifying
Answer is -3
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