If x=7 -4√3 find the value of x+1/x?
Solution
Correct Answer: Option C
দেওয়া আছে ,
x=7-4√3
বা,1/x =7+4√3/(7-4√3)(7+4√3)
=(7+4√3)/(7²-4√3²)
=((7+4√3)/49-48
=((7+4√3)/1
=((7+4√3)/
অতএব, x+1/x =7-4√3+7+4√3=14
x=7-4√3
বা,1/x =7+4√3/(7-4√3)(7+4√3)
=(7+4√3)/(7²-4√3²)
=((7+4√3)/49-48
=((7+4√3)/1
=((7+4√3)/
অতএব, x+1/x =7-4√3+7+4√3=14
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