Science, asked by Varshiniroy, 1 year ago

Anyone... plzzzzzzzzzzzzzzzzzzzzz solve this....


QUESTION :

Find
ifx +  \frac{1}{x}  = 3
What is the value of...


X square plus one by Xsquare

Answers

Answered by siddhartharao77
150

Given Equation is x + (1/x) = 3.

On squaring both sides, we get

⇒ (x + 1/x)² = (3)²

⇒ x² + 1/x² + 2 * x * 1/x = 9

⇒ x² + 1/x² + 2 = 9

⇒ x² + 1/x² = 9 - 2

x² + 1/x² = 7.


Hope it helps!


1357971: A brainless answer, Excellent
siddhartharao77: Thank you
akumarsahni: ye comment kaise delete hota hai
Answered by BrainlyQueen01
155

Answer :


The value of x² + 1 / x² = 7


Step-by-step explanation :


x + 1 / x = 3


On squaring both sides ;


( x + 1 / x )² = ( 3 )²


⇒ x² + 1 / x² + 2 = 9


⇒ x² + 1 / x² = 9 - 2


⇒ x² + 1 / x² = 7


Hence, the value of x² + 1 / x² = 7


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