Differential Calculus » Exercise – 1
2. The first-three non-zero terms in the expansion of ex tan x is :
(a) x + x2 + (1/3)x3
(b) x + (x3/3) + (2/5)x5
(c) x + x2 + (5/6)x3
(d) x + (x3/3) + (1/6)x5
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