if x+1/x= √5 , then find x²+1/x² Pls help fast
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Answered by
6
x+1/x=√5
squaring both sides
(x+1/x)^2=(√5)^2
x^2+2*x*1/x+1/x^2=5
x^2+2+1/x^2=5
x^2+1/x^2=5-2
x^2+1/x^2=3..
squaring both sides
(x+1/x)^2=(√5)^2
x^2+2*x*1/x+1/x^2=5
x^2+2+1/x^2=5
x^2+1/x^2=5-2
x^2+1/x^2=3..
khushimaheshdewani:
please mark as brainliest
Answered by
4
squaring both side
please mark as brainliest
please mark as brainliest
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