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CBSE Class 10 Answered

If (2,4),(2t,6t),(3,8) are collinear, then  t=  
Asked by sarithamunnam | 26 Jul, 2018, 08:11: PM
answered-by-expert Expert Answer
Let A (2, 4), B (2t, 6t) and C (3, 8)
According to the question,
Area of triangle ABC = 0
begin mathsize 16px style 1 half open square brackets 2 left parenthesis 6 straight t space minus space 8 right parenthesis plus 2 straight t left parenthesis 8 space minus space 6 straight t right parenthesis plus 3 left parenthesis 4 minus 8 right parenthesis close square brackets equals 0 end style
Solve it further and find t.
Answered by Sneha shidid | 27 Jul, 2018, 09:43: AM

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