x-(1/x)=7 হলে x3-(1/x)3 এর মান কত?
Solution
Correct Answer: Option C
x3-(1/x)3
= (x-1/x)3+3x(1/x)(x-1/x)
= 73+3.7
= 364
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Correct Answer: Option C
x3-(1/x)3
= (x-1/x)3+3x(1/x)(x-1/x)
= 73+3.7
= 364
Download our app for free and access thousands of MCQ questions with detailed solutions