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`(a_(1))/(a_(2))ne (b_(1))/(b_(2))` **Explain Pair of straight lines with examples.**

**What is the General equation of second degree and condition for represent pair of lines ?**

**What is Point of intersection of pair of straight line ?**

**Pair of straight lines through origin**

**Angle between pair of straight line**

**Some special Cases of angle between Pair Of Straight Lines**

**Bisector of angle between the pair of lines**

**Combined equation of pair of lines joining origin and intersection of a curve and line**

**Find the lines whose combined equation is `6x^2+5xy-4y^2+7x+13y-3=0`**

**Find the value of `Lambda` if `2x^2+7xy+3y^2+8x+14y+lambda=0` represent a pair of straight lines.**