f(x)= tan x then the value of f''(0) is-
a. 0
b.1
c. infinite
d. none of these
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Answered by
1
a)========1==========
Answered by
0
F(x) = tanx
F(x)' = sec^ 2 x
F (x)'' = 2 secx( secx tanx)
F(0)'' = 0
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