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Find the angle between the line joining ...

Find the angle between the line joining the points (2,0), (0,3) and the line `x+y=1.`

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Points `(2, 0), (0, 3)` and the line `x + y = 1`.
Let us assume `A (2, 0), B (0, 3)` be the given points
. Now, let us find the slopes
Slope of `AB = m1 = [(3 - 0) / (0 - 2)] = -3/2 `
Slope of the line `x + y = 1` is `-1`
...
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