﻿   Find the centre and radius of the sphere               : Kaysons Education

# Find The Centre And Radius Of The Sphere

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## Question

### Solution

Correct option is

Centre (-2, 4, -3) and radius = 5

The given equation is

Alternative method

The given equation is

Comparing this equation with

we get

And

.

#### SIMILAR QUESTIONS

Q1

Find the equation of the sphere whose centre is (2, – 3, 4) and radius 5.

Q2

Find the centre and radius of the sphere

Q3

Find the centre and radius of the sphere

Q4

Find the equation of the sphere concentric with the sphere

Q5

A point P(x, y, z) is such that 3PA = 2PB, where and B are the points (1, 3, 4) and (1, – 2, –1) respectively. Find the equation of the locus of the point P and show that the locus is a sphere.

Q6

Find the equation of the sphere whose centre has the position vector  and which touches the plane

Q7

Find the value of  for which the plane  touches the sphere

Q8

Find the radius of the circular section of the sphere  by the plane