CBSE Class 12-science Answered
find
Asked by | 24 May, 2009, 12:16: PM
Expert Answer
t(1 + x2) = x,
rearranging, we get,
t = x/(1 + x2)
substituting this in second equation
x2 + [x/(1 + x2)]2 = y,
x2 + x2/(1 + x2)2 = y
Hence dy/dx = 2x + [(1 + x2)2. 2x - x2. 2(1 + x2).2x]/(1 + x2)4
using x = 2, and evaluating gives,
dy/dx = 488/125
Regards,
Team,
TopperLearning.
Answered by | 20 Aug, 2009, 10:33: AM
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