Question

The Maclurin series expansion of cos²x -sin’ x is
,(-2)* x
a) Σ
k!
k-1
b) Σ
(-1)* x26
el (2k)!
% (-2)* *
1 (2k)!
c) Σ'
d) (-4)* με
I (2k)!

Answer 1

Answer:

oh my God I can't do sin ok

1. M k! k-1