Hello Kriti
t = 1 - 1/x3
t = 1 - x-3
Differentiating with respect to x
dt/dx = d(1)/dx - d(x-3)/dx
dt/dx = 0 - (-3)x-3 - 1
dt/dx = 3x-4
dt/dx = 3/x4
Written on Sept. 22, 2017, 12:50 p.m.
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Answer of this question
How dt/dx=3/x^4 come? In chapter 7 example 38
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