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If z1=3−2i,z2=2−i and z3=2+5i then find...

If `z_1=3−2i,z_2=2−i` and `z_3=2+5i `then find `z_1+z_2−3z_3`

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AAKASH INSTITUTE ENGLISH-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-Assignment (Section -B) (objective Type Questions ( one option is correct)
  1. let alpha ,beta be roots of ax^2+bx+c=0 and gamma,delta be the roots o...

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  2. The equation (a(x-b)(x-c))/((a-b)(a-c)) + (b(x-c)(x-a))/((b-c)(b-a))+...

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  3. If z1=3−2i,z2=2−i and z3=2+5i then find z1+z2−3z3

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  4. If the equation (k^(2)-3k +2) x^(2) + ( k^(2) -5k + 4)x + ( k^(2) -6k ...

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  5. The value of k if

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  6. if the difference of the roots of the equation x^(2)+ ax +b=0 is equa...

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  7. If the equations px^2+2qx+r=0 and px^2+2rx+q=0 have a common root then...

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  8. If the equations ax^2 + bx + c = 0 and x^2 + x + 1= 0 has one common r...

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  9. If 1,2,3 are the roots of the equation x^(3) + ax^(2) + bx + c=0 , th...

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  10. Consider that f(x) =ax^(2) + bx +c, D = b^(2)-4ac , then which of the...

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  11. If the minimum value ofx^2+2x+3 is m and maximum value of -x^2+4x+6 is...

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  12. for all x in R if mx^2-9mx+5m+1gt0 then m lies in the interval

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  13. If one root of equation (l-m) x^2 + lx + 1 = 0 be double of the other ...

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  14. if p,q,r are real numbers satisfying the condition p + q +r =0 , then ...

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  15. The roots of the equation x^(3) -2x^(2) -x +2 =0 are

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  16. IF alpha , beta are the roots of the equation x^2+2ax +b=0 , the...

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  17. The set of all values of ' a ' for which the quadratic equation 3x^2+2...

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  18. Let a,b,c in R and a ne 0 be such that (a + c)^(2) lt b^(2) ,the...

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  19. If p + iq be one of the roots of the equation x^(3) +ax +b=0 ,then 2...

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  20. If a(1),a(2),a(3),a(4),,……, a(n-1),a(n) " are distinct non-zero real...

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