Web5 Jul 2024 · The problem I have is trying to show or rather prove that the partial derivatives of sin (2z) are continuous in a region R so that this sufficiently implies that sin (2z) is an ... Once C-R equtions are verified at all points you can conclude that partial derivatives of all orders exist and they are alll continuous. $\endgroup$ – Kavi Rama ... Web30 Mar 2024 · Example 22 Find the angle between the two planes 2x + y – 2z = 5 and 3x – 6y – 2z = 7 using vector method. Angle between two planes 𝑟 ⃗. (𝑛1) ⃗ = d1 and 𝑟 ⃗.(𝑛2) ⃗ = d2 is given by cos θ = ((𝒏𝟏) ⃗ .
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Let u=2z+i/z ki, z=x+iy and k>0 If the curve represented by
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