Question:medium

If $e$ is the eccentricity of the hyperbola $x²/a² - y²/b² = 1$ and $θ$ is the angle between the asymptotes, then $\cos(θ/2)$ is equal to

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If $e$ is the eccentricity of the hyperbola $x/a - y/b = 1$ and $θ$ is the angle between the asymptotes, then $\cos(θ/2)$ is equal to
Updated On: Apr 15, 2026
  • $1/e$
  • $-1/e$
  • $e$
  • $1$
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The Correct Option is A

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