The equation ∂2ϕ∂x2+∂2ϕ∂y2=0∂2𝜙∂𝑥2+∂2𝜙∂𝑦2=0 is know as Blank 1 Question 5 equation in two variables.

The equation ∂2ϕ∂x2+∂2ϕ∂y2=0∂2𝜙∂𝑥2+∂2𝜙∂𝑦2=0 is know as Blank 1 Question 5 equation in two variables.

Ver en españolWrite the equation in standard form for the circle x2+y2–6x+5=0.Submit

If x,y,z∈R, x+y+z=5, x2+y2+z2=9𝑥,𝑦,𝑧∈𝑅, 𝑥+𝑦+𝑧=5, 𝑥2+𝑦2+𝑧2=9, then length of interval in which x𝑥 lies is

Find the area of the region that lies outside the circle x2 + y2 = 1 but inside the circle x2 + y2 − 8y − 9 = 0.

f two tangents from point (3, –2) to the circle x2 + y2 = 1 cuts x-axis at A(x1, 0) and B(x2, 0), then (x1 + x2) is equal to