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Solve the equation sqrt(x+3-4sqrt((x-1...

Solve the equation
`sqrt(x+3-4sqrt((x-1)))+sqrt(x+8-6sqrt((x-1))=1`

Text Solution

Verified by Experts

Rewrite the given equation
`sqrt(x+2sqrt(x+2sqrt(x+………….+2sqrt(x+2sqrt(x+2x)))))=x`……i
On replacing the last letter x on the LHS of Eq i by the value of `x` expressed by Eq. i w get
`x=ubrace(sqrt(x+2sqrt(x+2sqrt(x+……….+2sqrt(x+2sqrt(3x))))))_(2n"radical signs")`
Further let us replace the last letter x by the same expression again and again yields.
`:. `x=ubrace(sqrt(x+2sqrt(x+2sqrt(x+……….+2sqrt(x+2sqrt(3x))))))_(3n"radical signs")`
`x=ubrace(sqrt(x+2sqrt(x+2sqrt(x+……….+2sqrt(x+2sqrt(3x))))))_(4n"radical signs")=......`
We can write
`x=sqrt(x+2sqrt(x+2sqrt(x+...)))`
`=ubrace(lim_(Ntooo)sqrt(x+2sqrt(x+2sqrt(x+……….+2sqrt(x+2sqrt(3x))))))_(N"radical signs")`
it follows that
`x=sqrt(x+2sqrt(x+2sqrt(x+....)))`
`=sqrt(x+2(sqrt(x+2sqrt(x+...))))=sqrt((x+2x))`
Hence `x^(2)=x+2x`
`impliesx^(2)-3x=0`
`:.x=0,3`
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ARIHANT MATHS-THEORY OF EQUATIONS-Exercise (Questions Asked In Previous 13 Years Exam)
  1. Solve the equation sqrt(x+3-4sqrt((x-1)))+sqrt(x+8-6sqrt((x-1))=1

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  2. In the quadratic equation ax^2 + bx + c = 0. if delta = b^2-4ac and al...

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  3. Let S denote the set of all polynomials P(x) of degree lt=2 such th...

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  4. If the roots of x^2-b x+c=0 are two consecutive integers, then b^2-4c ...

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  5. If the equation a(n)x^(n)+a(n-1)x^(n-1)+..+a(1)x=0, a(1)!=0, n ge2, ha...

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  6. If both the roots of the quadratic equation x^(2)-2kx+k^(2)+k-5=0 are ...

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  7. Let a and b be the roots of the equation x^2-10 c x-11 d=0 and those ...

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  8. Let a,b,c be the sides of a triangle. No two of them are equal and lam...

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  9. All the value of m for which both the roots of the equation x 2 −2mx...

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  10. If the roots of the quadratic equation x^2+p x+q=0 are tan30^0a n dtan...

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  11. Let alpha,beta be the roots of the equation x^2-p x+r=0a n dalpha//2,2...

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  12. If the difference between the roots of the equation x^2+a x+1=0 is les...

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  13. Let a ,b , c ,p ,q be real numbers. Suppose alpha,beta are the roots o...

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  14. The quadratic equations x^2""-6x""+""a""=""0""a n d ""x^2""-c x""+""...

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  15. How many real solutions does the equation x^7+14 x^5+16 x^3+30 x-560=0...

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  16. Suppose the cubic x^(3)-px+q has three distinct real roots, where pgt0...

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  17. Find the discriminant of the quadratic equation 2x^2-4x+3=0, and hence...

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  18. If the roots of the equation b x^2+""c x""+""a""=""0 be imaginary, t...

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  19. Let p and q real number such that p!= 0,p^3!=q and p^3!=-q. if alpha a...

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  20. solve 0=-1+2x+3x^2

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  21. Find the roots of x^2-6x-2=0

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