Math, asked by sathwik915, 6 months ago

The locus of the point x = a cos 0, y = b sino is​

Answers

Answered by tejaswinimogal11
1

Answer:

Step-by-step explanation:

It is given that  

x=a(cosθ+sinθ)

y=b(cosθ−sinθ)

Now bx=ab(cosθ+sinθ) ...(i)

ay=ab(cosθ−sinθ) ...(ii)

Hence, b  

2

x  

2

+a  

2

y  

2

 

=a  

2  b  2  (cos  2  θ+sin  2  θ+2cosθsinθ+cos  2  θ+sin  2  θ−2cosθsinθ) =a  2  b  2  (2(cos  2  θ+sin  2  θ)) =2a  2 b  2

 Hence, b  2  x  2  +a  2  y  2  =2a  2  b  2

 

Dividing the entire equation by a  

2  b  2

 gives us

a  2 x  2  +  

b  

2

 

y  

2

 

​  

=2

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