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RD SHARMA ENGLISH-COMPLEX NUMBERS-All Questions
- What is the smallest positive integer n for which (1+i)^(2n)=(1-i)^(2n...
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- If (1+i)z=(1-i) barz , then show that z=-i barz dot
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- Write the conjugate of (2-i)/((1-2i)^2) .
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- lf z(!=-1) is a complex number such that [z-1]/[z+1] is purely imagina...
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- If z and w are two complex number such that |zw|=1 and arg (z) – arg (...
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- The value of (1+i)^4+(1-i)^4 is
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- If the complex number z=x+i y satisfies the condition |z+1|=1, then ...
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- If z = x + iy lies in III quadrant, then bar z / z also lies in III qu...
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- If a=costheta+i sintheta, find the value of (1+a)/(1-a)dot
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- Let z1=r1(costheta1+isintheta1)a n dz2=r2(costheta2+isintheta2) be two...
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- For a positive integer n , find the value of (1-i)^n(1-1/i)^ndot
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- If (1+i)(1+2i)(1+3i)........(1+n i)=a+i b ,t h e n2xx5xx10 ....(1+n^2)...
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- Perform the indicated operation and find the result in the form a+i bd...
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- Let z1=2-i ,""""z2=-2+i . Find (i) Re ((z1z2)/( bar z1)) (ii) Im(1...
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- Which of the following is correct for any tow complex numbers z1a n dz...
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- If z1a n dz2 are two complex numbers such that |z1|=|z2|a n d arg(z1)...
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- Evaluate sum(n=1)^(13)(i^n+i^(n+1)), where n in Ndot
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- Evaluate 1+i^2+i^4+i^6+...+i^(2n)dot
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- Show that: {i^(19)+(1/i)^(25)}^2=-4 (ii) {i^(17)-(1/i)^(34)}^2=2i (ii...
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- If z1, z2 in C , then say which are true and false - ...
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