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8.Find the9. Find the ratio in which the point p(m,6) divides the line segment joining the points A(-4,3)and B(2,8). Also find the value of 'm'. |
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Answer» LET point P divides AB in ratio λ:1 Section Formula: If point (x,y) divides line JOINING two points in (x 1 ,y 1 ) and (x 2 ,y 2 ) in ratio m:n internally x= m+n mx 2 +nx 1
m= λ+1 2λ−4 = 2 3 +1 2× 2 3 −4 = 5 −2
Now, y= m+n my 2 +ny 1
6= λ+1 8λ+3
6λ+6=8λ+3 2λ=3 ⇒λ= 2 3
Ratio, λ:1 = 2 3 :1 =3:2 m= 5 −2
Step-by-step explanation: |
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