It is given that b = 3, c=4, centre at the origin; foci on the x axis.
Since the foci are on the x-axis, the major axis is along the x-axis.
Therefore, the equation of the ellipse will be of the form =1, where a is the semi-major axis.
Accordingly, b = 3 and c=4.
It is known that a2 = b2+c2.
a2 = 32+42 = 9+16 =25
Thus, the equation of the ellipse is or = 1.
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