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If f(x)=x^3-x^2+a x+b is divisible by x...

If `f(x)=x^3-x^2+a x+b` is divisible by `x^2-x` , then find the value of `f(2)dot`

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CENGAGE PUBLICATION-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
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  2. If z=i log(2-sqrt3), then cosz= a. -1 b. (-1)/2 c. ...

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  3. If f(x)=x^3-x^2+a x+b is divisible by x^2-x , then find the value of...

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  4. z=x+iy and w=(1-iz)/(1+iz) and |w|=1 ,prove that z is purely real

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  5. If the equation z^4+a1z^3+a2z^2+a3z+a4=0 where a1,a2,a3,a4 are real co...

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  6. If f(x)=x^3-3x^2+2x+a is divisible by x-1, then find the remainder whe...

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  7. If z1a n dz2 are two complex numbers and c >0 , then prove that |z1+z2...

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  8. Suppose A is a complex number and n in N , such that A^n=(A+1)^n=1, t...

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  9. Find the value of p for which x+1 is a factor of x^4+(p-3)x^3-(3p-5)x^...

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  10. If z1, z2, z3 be the affixes of the vertices A, B and C of a triangle...

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  11. The number of complex numbers z such that |z|=1 and |z/ barz + barz/z...

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  12. Given that x^2-3x+1=0, then the value of the expression y=x^9+x^7+x^(-...

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  13. If i z^4+1=0, then prove that z can take the value cospi//8+isinpi//...

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  14. Find the value of x such that ((x+alpha)^n-(x+beta)^n)/(alpha-beta)=(s...

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  15. Suppose a ,b ,c in I such that the greatest common divisor for x^2+a ...

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  16. Find the value of following expression: [(1-cospi/(10)+isinpi/(10))/(1...

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  17. Dividing f(z) by z- i, we obtain the remainder i and dividing it by z...

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  18. If the roots of the cubic equation, x^3+a x^2+b x+c=0 are three consec...

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  19. If z1, z2 in C ,z1^2+z2^2 in R ,z1(z1^2-3z2^2)=2 and z2(3z1^2-z2^2)...

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  20. If cosalpha+cosbeta+cosgamma=0 a n d a l so sinalpha+sinbeta+singamm...

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