MHT CET2010MathematicsHyperbola
If e₁ and e₂ represent the eccentricity of the curves 16 x²-9 y²=144 and 9 x²-16 y²=144 respectively. Then, 1 e₁² + 1 e₂² is equal to
Options
- A0
- B1
- C2
- D3
Correct answer
B. 1
Step-by-step solution
Given curves are x² 9 - y² 16 =1 and x² 16 - y² 9 =1 ₁= 1+ 16 9 = 5 3 and e₂= 1+ 9 16 = 5 4 Now, 1 e₁² + 1 e₂² = 9 25 + 16 25 =1