The length of the tangent from (4, 5) to the circle x2 + y2 = 16 is: - Business Mathematics and Statistics

The length of the tangent from (4, 5) to the circle x² + y² = 16 is:

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Chapter 3: Analytical Geometry - Exercise 3.7 [Page 71]

Chapter 3 Analytical Geometry
Exercise 3.7 | Q 10 | Page 71

Find the equation of the following circles having the centre (0,0) and radius 2 units

Find the centre and radius of the circle.

5x² + 5y²+ 4x – 8y – 16 = 0

(1, -2) is the centre of the circle x² + y² + ax + by – 4 = 0, then its radius:

Obtain the equation of the circles with radius 5 cm and touching x-axis at the origin in general form

Find the equation of the circle with centre (2, −1) and passing through the point (3, 6) in standard form

Find the equation of circles that touch both the axes and pass through (− 4, −2) in general form

A circle of area 9π square units has two of its diameters along the lines x + y = 5 and x – y = 1. Find the equation of the circle

Find centre and radius of the following circles

x² + y² – x + 2y – 3 = 0

Choose the correct alternative:

The radius of the circle 3x² + by² + 4bx – 6by + b² = 0 is

Choose the correct alternative:

The equation of the normal to the circle x² + y² – 2x – 2y + 1 = 0 which is parallel to the line 2x + 4y = 3 is