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The value of (1+i)^4+(1-i)^4 is...

The value of `(1+i)^4+(1-i)^4` is

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To find the value of \( (1+i)^4 + (1-i)^4 \), we can follow these steps: ### Step 1: Calculate \( (1+i)^2 \) and \( (1-i)^2 \) First, we will calculate \( (1+i)^2 \): \[ (1+i)^2 = 1^2 + 2 \cdot 1 \cdot i + i^2 = 1 + 2i + (-1) = 2i ...
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RD SHARMA ENGLISH-COMPLEX NUMBERS-All Questions
  1. lf z(!=-1) is a complex number such that [z-1]/[z+1] is purely imagina...

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  2. If z and w are two complex number such that |zw|=1 and arg (z) – arg (...

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  3. The value of (1+i)^4+(1-i)^4 is

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  4. If the complex number z=x+i y satisfies the condition |z+1|=1, then ...

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  5. If z = x + iy lies in III quadrant, then bar z / z also lies in III qu...

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  6. If a=costheta+i sintheta, find the value of (1+a)/(1-a)dot

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  7. Let z1=r1(costheta1+isintheta1)a n dz2=r2(costheta2+isintheta2) be two...

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  8. For a positive integer n , find the value of (1-i)^n(1-1/i)^ndot

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  9. If (1+i)(1+2i)(1+3i)........(1+n i)=a+i b ,t h e n2xx5xx10 ....(1+n^2)...

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  10. Perform the indicated operation and find the result in the form a+i bd...

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  11. Let z1=2-i ,""""z2=-2+i . Find (i) Re ((z1z2)/( bar z1)) (ii) Im(1...

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  12. Which of the following is correct for any tow complex numbers z1a n dz...

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  13. If z1a n dz2 are two complex numbers such that |z1|=|z2|a n d arg(z1)...

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  14. Evaluate sum(n=1)^(13)(i^n+i^(n+1)), where n in Ndot

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  15. Evaluate 1+i^2+i^4+i^6+...+i^(2n)dot

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  16. Show that: {i^(19)+(1/i)^(25)}^2=-4 (ii) {i^(17)-(1/i)^(34)}^2=2i (ii...

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  17. If z1, z2 in C , then say which are true and false - ...

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  18. Prove that the following complex number is purely real: (i)((2+3i)/(3+...

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  19. Show that 1+i^(10)+i^(20)+i^(30) is a real number.

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  20. Find the values of following expression:1+i^2+i^4+i^6+i^8+doti^(20)

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