x-1/x = 1 হলে x3-1/x3 এর মান কত?
Solution
Correct Answer: Option D
x3-1/x3
=(x-1/x)3+3.x.1/x(x-1/x )
=(1)3+3(1)
=1+3=4
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Correct Answer: Option D
x3-1/x3
=(x-1/x)3+3.x.1/x(x-1/x )
=(1)3+3(1)
=1+3=4
Download our app for free and access thousands of MCQ questions with detailed solutions