TS EAMCET · Maths · Application of Derivatives
If the tangent to the curve at makes an angle with -axis, then
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
Given curve is xy+ax+by=0.........1 It passes through 1,1 ∴a+b=-1........2 Differentiating 1 with respect to x, we get xdydx+y+a+bdydx=0 ⇒dydxx+b=-y+a ⇒dydx1,1=-(1+a)1+b Also given that tangent at 1,1 makes an angle tan-12 with x-axis. Let θ be the angle…
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