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If z1, z2a n dz3, z4 are two pairs of co...

If `z_1, z_2a n dz_3, z_4` are two pairs of conjugate complex numbers, find the `a rg((z1)/(z4))+a rg((z2)/(z3)) =0

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RD SHARMA ENGLISH-COMPLEX NUMBERS-All Questions
  1. Show that if iz^3+z^2-z+i=0, then |z|=1

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  2. Solve the equation z^2 +|z|=0 , where z is a complex number.

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  3. If z1, z2a n dz3, z4 are two pairs of conjugate complex numbers, find ...

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  4. If zr=cos(pi/(3^r))+isin(pi/(3^r)),r=1,2,3, , prove that z1z2z3 zoo=i...

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  5. If xn=cospi/(2^n)+isinpi/(2^n) , prove that x1x2x3 xoo=-1.

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  6. Find the square root of the following: 5+12 i

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  7. Find the square roots of -15-8idot

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

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  9. If ((a^2+1)/(2a-i))^2=x+i y , find the value of x^2+y^2dot

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  10. Let z1a n dz2 be two complex numbers such that ( z )1+i( z )2=0 and ...

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  11. If |z-5i|=|z+5i| , then the locus of zdot

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  12. If z1a n dz2 both satisfy z+barz r =2|z-1| and a r g(z1-z2)=pi/4 , t...

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  13. Show that the complex number z, satisfying the condition arg ((z -1)/(...

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  14. If z=(1+7i)/((2-i)^2) , then find |z|?

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  15. The value of (i^5+i^6+i^7+i^8+i^9)/(1+i) is

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  16. Write the least positive integral value of n for which ((1+i)/(1-i))^n...

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  17. If f(z)=(7-z)/(1-z^2) , where z=1+2i , then |f(z)| is

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  18. If z1,z2, z3 are complex numbers such that |z1|=|z2|=|z3|=|1/z1+1/z2+1...

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  19. What is the locus of z , if amplitude of (z-2-3i) is pi/4?

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  20. Write the sum of the series i+i^2+i^3+....... upto 1000 terms.

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