Delhi University MCA 2019 Previous Year Questions (PYQs) – Page 1 of 5
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Let $z=\cos\!\left(\frac{2\pi}{7}\right)+i\sin\!\left(\frac{2\pi}{7}\right)$.
Then the principal argument of $\overline{(1-z^{2}})$ is equal to
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The set of all $\lambda\in R$ such that {an} where $a_n=\sqrt{\lambda^2n^2+n+1}-n, n\in N$, is
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The complex number 
is the root of the quadratic equation with real coefficients
is the root of the quadratic equation with real coefficients1
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The locus of the point (α, β) such that the line y = αx + β, become a tangent to the hyperbola 9x2 - 4x2 = 36, is
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Delhi University MCA
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