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Find the slop of line . The Equation of ...

Find the slop of line . The Equation of line is `2x-5y=4`

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The correct Answer is:
D
We know that the unit vector along bisector of unit vectors u and v is `(u+v)/(2"cos"(theta)/(2))`, where `theta` is the angle between vector u and v.
Also, in an isosceles `DeltaABC` in which
AB=AC, the median and bisector from A must be same line.
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