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Find the values of a if x^2-2(a-1)x+(2a+...

Find the values of a if `x^2-2(a-1)x+(2a+1)=0` has positive roots.

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CENGAGE ENGLISH-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
  1. Solve the following: (sqrt(x^2-5x+6)+sqrt(x^2-5x+4))^(x/2)+(sqrt(x^2-...

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  2. Show that the equation A^2//(x-a)+B^2//(x-b)+C^2//(x-c)+...+H^2//(x-h)...

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  3. Find the values of a if x^2-2(a-1)x+(2a+1)=0 has positive roots.

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  4. If alphaa n dbeta,alphaa n dgamma,alphaa n ddelta are the roots of th...

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  5. If alphabeta the roots of the equation x^2-x-1=0 , then the quadratic...

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  6. If a(p+q)^2+2b p q+c=0 and a(p+r)^2+2b p r+c=0 (a!=0) , then which one...

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  7. If alpha1,alpha2 are the roots of equation x ^2-p x+1=0a n dbeta1,bet...

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  8. Suppose A, B, C are defined as A=a^2b+a b^2-a^2c-a c^2 , B=b^2c+b c^2-...

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  9. The integral value of m for which the root of the equation m x^2+(2m-1...

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  10. If b1. b2=2(c1+c2) then at least one of the equation x^2+b1x+c1=0 and ...

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  11. If the root of the equation (a-1)(x^2-x+1)^2=(a+1)(x^4+x^2+1) are rea...

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  12. If alpha and beta are roots of the equation a x^2+b x+c=0, then the ro...

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  13. If a ,b ,c ,d in R , then the equation (x^2+a x-3b)(x^2-c x+b)(x^2-dx...

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  14. Graph of y = f(x) is as shown in the following figure. Find th...

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  15. In how many points graph of y=x^3-3x^2+5x-3 intersect the x-axis?

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  16. The quadratic polynomial p(x) has the following properties:p(x)geq0 fo...

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  17. If (1-p) is a root of quadratic equation x^2+p x+(1-p)=0, then find it...

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  18. A polynomial in x of degree 3 vanishes when x=1 and x=-2 , ad has the ...

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  19. Let f(x)=a^2+b x+c where a ,b , c in R and a!=0. It is known that f(5...

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  20. If x=1 and x=2 are solutions of equations x^3+a x^2+b x+c=0 and a+b=1,...

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