Find the foci of the hyperbola? `x^2/64-y^2/36=1`



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If general equation of hyperbola is


then we can calculate linear eccentricity `e>0` by using formula

`e^2=a^2+b^2`                                                                   (1)

and then the foci are `F_1(-e,0)` and `F_2(e,0)`.

Let's now apply that to your case. Here we have `a^2=64` and `b^2=36` hence



So the foci are `F_1(-10,0)` and `F_2(10,0).`

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