if y = 2+√3 then find the value 3y^2+3/y^2
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Y=2+√3
Y^2=(2+√3)^2
=4+4√3+3
=7+√3
putting in 3Y^2+3/Y^2
=3(7+√3)+3/7+√3
=21+3√3+3(7-√3)/49-3
=21+3√3+21-3√3/46
plz simplify from here
shree5715:
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