For what value of λ dose the line y = x + λ touches the ellipse
9x2 + 16y2 = 144.
âˆµ Equation of ellipse is
Comparing this with
then we get
a2 = 16 and b2 = 9
and comparing the line y = x + λ with y = mx + c
If the line y = x + λ touches the ellipse
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