plz solve this question
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square the equation on both sides
the final answer is 34
the final answer is 34
Answered by
2
x-1/x=2
square on both sides
(x-1/x)^2 = 2^2
x^2 + 1/x^2 2(x*1/x) = 4
x^2 +1/x^2 =4+2
x^2+1/x^2=6
again square on both sides,
(x^2 + 1/x^2)^2 = 6^2
x^4 +1/x^4 +2( x^2 * 1/x^2) = 36
x^4 +1/x^4 = 36-2
x^4 +1/x^4 = 34
square on both sides
(x-1/x)^2 = 2^2
x^2 + 1/x^2 2(x*1/x) = 4
x^2 +1/x^2 =4+2
x^2+1/x^2=6
again square on both sides,
(x^2 + 1/x^2)^2 = 6^2
x^4 +1/x^4 +2( x^2 * 1/x^2) = 36
x^4 +1/x^4 = 36-2
x^4 +1/x^4 = 34
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