a- (1/a) =5√3 হলে ,a²+1/a² এর মান কত ?
Solution
Correct Answer: Option A
দেওয়া আছে ,
a- 1/a =5√3
অতএব , a²+1/a² =(a- 1/a)²+2.a.1/a
=(5√3)²+2
=25.3+2
=75+2
=77
a- 1/a =5√3
অতএব , a²+1/a² =(a- 1/a)²+2.a.1/a
=(5√3)²+2
=25.3+2
=75+2
=77
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