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Questions (25)

 3 Determine singular point of $f(z)=\frac{e^z}{\sin\frac{1}{z}}$ at $z=0$ and $z=\infty$ 3 What does $g(x)$ really mean in Riemann-Stieltjes intergral? 2 Find a formula for $\cos(5x)$ in terms of $\sin(x)$ and $\cos(x)$ 1 What is the condition of a curve to have a tangent at point P? 1 Why the equation of an arbitrary straight line in complex plane is $zz_o + \bar z \bar z_0 = D$

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 +10 Find a formula for $\cos(5x)$ in terms of $\sin(x)$ and $\cos(x)$ +5 What does $g(x)$ really mean in Riemann-Stieltjes intergral? +5 How to read GTM216(Graduate Texts in Mathematics: Matrices: Theory and Application) +5 Determine singular point of $f(z)=\frac{e^z}{\sin\frac{1}{z}}$ at $z=0$ and $z=\infty$

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 0 complex-numbers × 11 0 abstract-algebra × 5 0 complex-analysis × 10 0 matrices × 3 0 convex-analysis × 5 0 calculus × 3 0 real-analysis × 5 0 nonlinear-optimization × 3 0 linear-algebra × 5 0 multivariable-calculus × 2