Describe in words the surface whose equation is given. ϕ=π4 (select the correct answer) 1)the top half of the right circular cone with vertex at the origin and axis the positive z-axis 2)the plane perpendicular to the xz-plane passing through z = x, where x≥0 3)the plane perpendicular to the xy-plane passing through y = x, where x≥0 4)the base of the right circular cone with vertex at the origin and axis the positive z-axis 5)the plane perpendicular to the yz-plane passing through z = y, where y≥0

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Describe in words the surface whose equation is given. ϕ=π4 (select the correct answer)  1)the top half of the right circular cone with vertex at the origin and axis the positive z-axis  2)the plane perpendicular to the xz-plane passing through z = x, where x≥0  3)the plane perpendicular to the xy-plane passing through y = x, where x≥0  4)the base of the right circular cone with vertex at the origin and axis the positive z-axis  5)the plane perpendicular to the yz-plane passing through z = y, where y≥0

Ayesha Gomez · Accepted Answer

The answer is pretty simple:

Jeffrey Jordon · Accepted Answer

The speherial coordinates are  x=Rcos⁡θsin⁡ϕ=Rcos⁡θ2  y=Rsin⁡θsin⁡ϕ=Rsin⁡θ2  z=Rcos⁡ϕ=R2  x2+y2=R22=z2  z2=x2+y2  this is coneat vertex origin and axis as z-axis  z2=x2+y2⇒z=x2+y2 (upper) and z=−x2+y2 (lower)  z=x2+y2 (upper) we  have only upper part of cone  if ϕ=3π4 represents lower part of cone correction option is 1

Describe in words the surface whose equation is given. \phi = \frac{\pi}{4} (select the correct answer) 1)the top half of the right circular cone with

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