Chemical Engineering > GATE 2021 > Taylor Series
The function cos(x) is approximated using Taylor series around x=0 as cos(x)≈1+ax+bx2+cx3+dx4. The values of a, b, c and d are
A
a=1, b=-0.5, c=-1, d=-0.25
B
a=0, b=-0.5, c=0, d=0.042
C
a=0, b=0.5, c=0, d=0.042
D
a=-0.5, b=0, c=0.042, d=0

Correct : b

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