Question

b) Find the centre and radius of the sphere 2x^2+ 2y^2 + 2z^2 + 3x - 4y-5z-1=0​

Answer 1

Since the centre and radius of the sphere

x + y + z + 2 ux + 2vy + 2wz + d = 0 are

(-u, -v, - w) and

respectively. So, for the sphere

x + y + z + 3x - 4z + 1 = 0,

Centre and

Radius

Step-by-step explanation:

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