coordinate

Question: The area of the triangle formed by the lines $y={{m}_{1}}x+{{c}_{1}},\,$ $y={{m}_{2}}x+{{c}_{2}}$ and $x=0$is

1) $\frac{1}{2}\frac{{{({{c}_{1}}+{{c}_{2}})}^{2}}}{({{m}_{1}}-{{m}_{2}})}$

2) $\frac{1}{2}\frac{{{({{c}_{1}}-{{c}_{2}})}^{2}}}{({{m}_{1}}+{{m}_{2}})}$

3) $\frac{1}{2}\frac{{{({{c}_{1}}-{{c}_{2}})}^{2}}}{({{m}_{1}}-{{m}_{2}})}$

4) $\frac{{{({{c}_{1}}-{{c}_{2}})}^{2}}}{({{m}_{1}}-{{m}_{2}})}$

Solution:

Explanation: No Explanation

Points related to triangle (Orthocente Circumcentre Incentre) Area of some geometrical figures Collinearity

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