JEE Mains 2020 Model Paper 4 New Pattern

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Question : 63 of 75

Marks: +1, -0

If y = 1 + x +

x2

2!

+

x3

3!

+ ... +

xn

n!

then

dy]

dx

is equal to

y
y+
xn
n!
y−
xn
n!
y−1−
xn
n!

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