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AP EAMCET · Maths · Hyperbola

If the normal to the rectangular hyperbola x2-y2=1 at the point Pπ4 meets the curve again at Qθ, then sec2θ+tanθ=

  1. A 43
  2. B 57
  3. C 3
  4. D 1
Verified Solution

Answer & Solution

Correct Answer

(B) 57

Step-by-step Solution

Detailed explanation

Given, Equation of hyperbola x2-y2=1 Now parametric point is given by asecθ,btanθ≡2,1 as given θ=45° & a=b=1 Now finding slope of tangent at the given point by differentiating the curve we get, 2x-2ydydx=0 ⇒dydx2,1=21 So, slope of…