plss ans q 22 ii........ plsssss ans tst tmrr
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x+1/x=6
x²-1/x² = ?
(x+1/x)²=6² (squaring both sides)
x²+1/x²+2 = 36
x²+1/x² = 34
(x-1/x)² => x²+1/x²-2
=> 34+2 => 36
x-1/x =√36 = 6
(x+1/x)(x-1/x) = x²-1/x². (using a²-b²=(a+b)(a-b).)
(6)(6)=x²-1/x²
36 = x²-1/x²
hope this helps
x²-1/x² = ?
(x+1/x)²=6² (squaring both sides)
x²+1/x²+2 = 36
x²+1/x² = 34
(x-1/x)² => x²+1/x²-2
=> 34+2 => 36
x-1/x =√36 = 6
(x+1/x)(x-1/x) = x²-1/x². (using a²-b²=(a+b)(a-b).)
(6)(6)=x²-1/x²
36 = x²-1/x²
hope this helps
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