23 Maths -- Analytic Geometry

Prove that the two straight lines (x2+y2)sin2α=(xcosθ - ysinθ)2 include an angle 2α.

Prove that the two straight lines (x²+y²)sin²α=(xcosθ - ysinθ)² include an angle 2α.

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More questions on Analytic Geometry

The image of the point (-8,12) with respect to the line mirror 4x+7y+13=0 is (a) (16,-2) (b) (-16,2) (c) (16,2) (d) (-16,-2)

Answer is option d. (-16,-2)

Explanation:-

We obtain expression for trigonometric functions by solving for right angle triangle drawn on a circle. Similarly, how are the expressions for the functions of the type ex - e-x^2 , 2ex +e-x , ......

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