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If pi//5 and pi//3 are the arguments of ...

If `pi//5 and pi//3` are the arguments of `barz_1 and z_2` then the value of `arg (z_1)+arg (z_2)` is

A

`6pi//15`

B

`pi//15`

C

`2pi//15`

D

`4pi//15`

Text Solution

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The correct Answer is:
C
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DIPTI PUBLICATION ( AP EAMET)-COMPLEX NUMBERS -EXERCISE 1
  1. The amplitude of 1+costheta+isintheta is

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  2. The amplitude of (1+sqrt(3)i)/(sqrt(3)+i) is

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  3. If pi//5 and pi//3 are the arguments of barz1 and z2 then the value of...

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  4. If pi//3 and pi//4 are the arguments of z1 and barz2 then the value of...

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  5. If 2pi//3 and pi//6 are the arguments of barz1 and z2 then value of ar...

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  6. z=1+isqrt(3)rArr|Arg z|+|Argbarz|=

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  7. If z1 and z2 are two non - zero complex numbers such that |z1+z2|=|z1|...

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  8. If z1 and z2 are two non - zero complex numbers such that |z1+z2|=|z1-...

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  9. If z is a complex number of unit modulus and argument theta then, arg ...

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  10. Let z,w be complex number such that barz+ibarw=0 and arg zw =pi . Then...

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  11. If z and omega are two nonzero complex numbers such that |zomega|=1 an...

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  12. If omega(ne1) is a cube root of unity , and (1+omega)^7=A+Bomega . The...

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  13. The polar form of 1+sqrt(3)i is

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  14. The mod -amplitude form of sqrt(3)-i is

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  15. The mod -amplitude form of -sqrt(3)-i is

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  16. The mod -amplitude form of 1-sqrt(3)i

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  17. The mod -amplitude form of 5+12i is

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  18. The mod -amplitude form of (1+7i)/(2-i)^2 is

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  19. The mod -amplitude form of 1+itan theta is

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  20. The mod -amplitude form of 1+cos theta-isin theta is

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