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If (asecθ,btanθ) and (asecϕ,btanϕ) are the ends of a focal chord of x2a2−y2b2=1, the value of tanθ2⋅tanϕ2 can be equal to : |
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Answer» If (asecθ,btanθ) and (asecϕ,btanϕ) are the ends of a focal chord of x2a2−y2b2=1, the value of tanθ2⋅tanϕ2 can be equal to : |
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