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TS EAMCET · Maths · Hyperbola

Let Aθ1 and Bθ2 be two points on the hyperbola x2a2-y2b2=1 and S be the focus of the hyperbola. If A,S,B are collinear and acosθ1+θ22=kcosθ1-θ22 then k=

  1. A a2+b2
  2. B a2+b2
  3. C a2-b2
  4. D a+b
Verified Solution

Answer & Solution

Correct Answer

(B) a2+b2

Step-by-step Solution

Detailed explanation

Plotting the diagram of given data we get, We know that equation of chord joining Aθ1 & Bθ2 is given by, xacosθ1-θ22-ybsinθ1+θ22=cosθ1+θ22 Now given this chord is passing through focus ae,0 then,…
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