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`(7)/(3sqrt(2))``(5)/(sqrt(2))``(3)/(sqrt(2))``sqrt(2)`

Answer :

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**Find the distance of the point P(a; b; c) from the x axis**

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**Find the angle between the lines whose direction cosines are given by the equations `3l + m + 5n = 0` and `6mn - 2nl + 5lm = 0`**