Question

x^2+1/x^2=79 find the value of x​

Answer 1

Answer:

$\frac{ {x}^{2} + 1}{ {x}^{2} } = 79 \\ = > {x}^{2} + 1 = 79 {x}^{2} \\ = > 79 {x}^{2} - {x}^{2} = 1 \\ = > 78 {x}^{2} = 1 \\ = > {x}^{2} = \frac{1}{78} \\ = > x = \sqrt{ \frac{1}{78 } } \\ = > x = \frac{1}{ \sqrt{78} }$

Answer 2

Answer:

=79

=>x

2

+1=79x

2

=>79x

2

−x

2

=1

=>78x

2

=1

=>x

2

=

78

1

=>x=

78

1

=>x=

78

1