how 2 expand this equation...........(1-x^2)^4..?

Dear arun

(1-x^2)^4  can easly expand by binomial theorem

if you want to expan with the help of calcus

(1-x²)⁴  = a0  + a2 x² + a4 x⁴ + a6 x ⁶ +a8x⁸

put x=0

a0=1

now twice differentiate  and put x=0 you will get value of a2.

further twice differentiate and put x=0 you will get value of a4

similerly for others

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