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Find the roots of the following quadrati...

Find the roots of the following quadratic equations, if they exist, by the method of completing the square: `x^2+4x+1=0`

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R G PUBLICATION-REVISION-EXERCISE
  1. Find the roots of the following quadratic equations by factorisation: ...

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  2. Find the roots of the following quadratic equations by factorisation: ...

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  3. Find the roots of the following quadratic equations, if they exist, by...

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  4. Find the roots of the following quadratic equations, if they exist, by...

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  5. Find the roots of the following equations: 2/3x^2-1/3x-1=0

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  6. Find the roots of the following equations:2x^2+1/2=2x

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  7. Find the roots of the following equations:x+1/x=2

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  8. Find the roots of the following equations:(5x-6)/(4x-1)=(2x+3)/(3x+2)

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  9. Find the nature of the roots of the following quadratic equations. If ...

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  10. Find the nature of the roots of the following quadratic equations. If ...

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  11. Find the nature of the roots of the following quadratic equations. If ...

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  12. Find the nature of the roots of the following quadratic equations. If ...

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  13. Find the values of k for each of the following quadratic equations, so...

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  14. Find the values of k for each of the following quadratic equations, so...

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  15. Find the values of k for each of the following quadratic equations, so...

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  16. Find the values of k for each of the following quadratic equations, so...

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  17. Evaluate the following:(iv)(Sin30^@+tan45^@-Cosec60^@)/(Sec30^@+Cos60^...

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  18. Evaluate the following: (Cosec30^@+Cosec60^@+Cosec90^@)/(Sec0^@+Sec30^...

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  19. If Sin(x+y)=1,Cos(x-y)=sqrt3/2 and x>y,0^@lex+yle90^@ then find x and ...

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  20. Find the value : Sin35^@sin55^@-Cos35^@Cos55^@

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