If x-6-5- then x 2-1 - 2-2-a 26b 25c 24d 20

Given that.Hence is given as We need to find We know that rationalization factor for nbsp; is. We will multiply numerator and denominator of the given exp ...

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Standard X

Mathematics

Concept of Inequality

If x=6+5, the...

Question

If $x = \sqrt{6} + \sqrt{5}$ , then $x^{2} + \frac{1}{x^{2}} - 2 =$

(a) $2 \sqrt{6}$

(b) $2 \sqrt{5}$

(c) 24

(d) 20

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Solution

Given that.Hence is given as

We need to find

We know that rationalization factor for is. We will multiply numerator and denominator of the given expression by, to get

We know that therefore,

Hence the value of the given expression is 20 and correct option is (d).

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If x=6+5, then x2+1x2-2= (a) 26 (b) 25 (c) 24 (d) 20

Given that.Hence is given as We need to find We know that rationalization factor for is. We will multiply numerator and denominator of the given expression by, to get We know that therefore, Hence the value of the given expression is 20 and correct option is (d).

If $x = \sqrt{6} + \sqrt{5}$ , then $x^{2} + \frac{1}{x^{2}} - 2 =$

(a) $2 \sqrt{6}$

(b) $2 \sqrt{5}$

(c) 24

(d) 20

Given that.Hence is given as

We need to find

We know that rationalization factor for is. We will multiply numerator and denominator of the given expression by, to get

We know that therefore,

Hence the value of the given expression is 20 and correct option is (d).