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Please answer the question no 69 as soon as possible thanks

Chandan Kumar , 6 Years ago
Grade 11
anser 1 Answers
Arun

Last Activity: 6 Years ago

Dear Chandan
 
Find tangent at t1
y - 2at1 = dy/dx)t1 ( x - at²1)
Similarly find tangent at t2
Now put condition of them to be perpendicular, you will find as
t1 * t2 = -1
 
Regards
Arun (askIITians forum expert)

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