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CBSE Notes 2011-2012 » XI-Maths

Complex Numbers and Quadratic Equations

Find the least positive integral value of n, such that [1+i/1-i]n =1.

Short answer question

Find the least positive integral value of n, such that [1+i/1-i]n =1.

Solve for z, the equation |z| + z = 2 + i.

Short answer question

Solve for z, the equation |z| + z = 2 + i.

Find a and b, such that 2a + 4ib and 2i represent the same complex number

Short answer question

Find a and b, such that 2a + 4ib and 2i represent the same complex number

x2+4ix-4=0

Short answer question

x2+4ix-4=0

Represent,(cos x =i sin x)(cosy+i siny)/(cot u + i(1+itan v)in the form A + iB.

Short answer question

Represent,(cos x =i sin x)(cosy+i siny)/(cot u + i(1+itan v)in the form A + iB.

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