Question

if x+1/x=11 find the value of x^2+1/x2

Answer 1

Hi Friend !!!

Here is ur answer !!!

x+1/x = 11

(x+1/x)² = 11²

x²+1/x² + 2(x)(1/x) = 121

x²+1/x² +2 = 121

x²+1/x² = 121-2

x²+1/x² = 119

Hope it helps u :-)

Answer 2

Hey mate...
Your answer is here

SOLUTION ==
Given x - 1/x = 11
squaring on both sides we get

⇒ (x-1/x)2=112

⇒ x2+1/x2-2(x)(1/x)=121......(a-b)2=a2+b2-2ab

⇒ x2+1/x2-2=121

⇒ x2+1/x2 = 121+2 = 123

∴ x2+1/x2=123 answer

☺️
I hope it will help you
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