What is the value of the discriminant if the equation is x2+ y² – 2x – 2y – 14 = 0? %3D - A. -60 В. - 4 С. О D. 14

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A: given that  EF = 28,  DF = 42

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A: We use variation of parameters method to solve the given differential equation.

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Q: z2 = 9 and outside the cylinder x? + y? = 1.

A: coordinates, x=r cos θy=r sin θz=2 x2+y2=r2cos2θ+sin2θ=r2x2+y2+z2=9r2+z2=9⇒z=±9-r2 x2+y2=r2⇒r=2

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A: We have to find the solution of  y' = yx+xy.

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Q: eliminate the parameter to obtain an equation in x and y

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Q: If ∫3 0 f(x)dx=−2 and ∫4 0 g(x)dx=5, what is the value of ∫∫Df(x)g(y)dA where DD is the rectangle:…

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A: vx=250000.86x take x=2 v2=250000.862 v(2)=250000.7396 v(2)=18490

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Q: x² + y?, e = 0.0121 ɛ =

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