x square + 1/x square ? while x +1/x = 7
batmanfistswastaken:
can anyone answer this im having trouble with this
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Answer:
x^2+1/x^2=47
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Answer:
x+1/x = 7
on squaring both the sides
(x+1/x)^2=7^2
x^2 +1/x^2+2*x*1/x =49
x^2+ 1/x^2+2=49
x^2+1/x^2=49-2
x^2+1/x^2=47
KV
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