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I'm going to sketch the graph of the eq. 4x^2 + 9y^2 = 144
This is an ellipse with its center at the origo and major semiaxis 6 and minor semiaxis 4. But how do I find the foci?
This is an ellipse with its center at the origo and major semiaxis 6 and minor semiaxis 4. But how do I find the foci?