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if (x+i y)^(1/3) = a+ib then (x/a) + ...

if `(x+i y)^(1/3) = a+ib ` then `(x/a) + (y/b)` equals to

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CBSE COMPLEMENTARY MATERIAL-COMPLEX NUMBERS AND QUADRATIC EQUATIONS -Short Answer Type Questions
  1. For complex numbers z1 = 6+3i, z2=3-I find (z1)/(z2)

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  2. If ((2+2i)/(2-2i))^(n)=1 find the least positive integral of n.

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  3. if (x+i y)^(1/3) = a+ib then (x/a) + (y/b) equals to

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  4. Convert the following in polar form, (i)-3sqrt2+3sqrt2i

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  5. Convert the following in polar form, (ii) ((sqrt3 -1)-(sqrt3+1)i)/((2s...

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  6. Convert the following in polar form, (iii)i(1+i)

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  7. Convert the following in polar form, (iv)(5-i)/(2-3i)

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  8. Solve (i) x^(2) -(3sqrt2-2i)x-6sqrt2i=0

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  9. Solve the following equations by using the general expression for a qu...

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  10. Find the square root of 7-30Sqrt(-2)

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  11. Prove that: x^4=4=(x+1+i)(x+1-i)(x-1+i(x-1-i)dot)

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  12. Show that |(z -2)/(z - 3)| = 2 represents a circle, find its centre ...

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  13. Find all non zero complex numbers z satisfying barz=iz^2

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  14. If i z^3+z^2-z+i=0 , where i=sqrt(-1) , then |z| is equal to 1 (b) 1/2...

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  15. If z1,z2 are complex numbers such that, (2z1)/(3z2) is purely imaginar...

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  16. If z1 and z2 are complex numbers such that, |1-bar z1z2|^(2)-|z1-z(2^(...

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  17. Find the number of solutions of z^2+|z|^2=0.

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  18. If z1,z2 are complex numbers such that, |(z1-3z2)/(3-z1.bar z2)|=1 and...

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  19. Evaluate x^(4) -4x^(3)+4x^(2)+8x+44, when x=3+2i

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  20. Complex number z1 and z2 satisfy z+barz=2|z-1| and arg (z1-z2) = pi/4 ...

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