x^2/1!-x^4/3!+x^6/5!-x^8/7!+...+(-1)^(n+1)*x^2N/(2n+1)!编写程序用QB
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x^2/1!-x^4/3!+x^6/5!-x^8/7!+...+(-1)^(n+1)*x^2N/(2n+1)!编写程序用QBx^2/1!-x^4/3!+x^6/5!-x^8/7!+...+(-1)^(
x^2/1!-x^4/3!+x^6/5!-x^8/7!+...+(-1)^(n+1)*x^2N/(2n+1)!编写程序用QB
x^2/1!-x^4/3!+x^6/5!-x^8/7!+...+(-1)^(n+1)*x^2N/(2n+1)!
编写程序
用QB
x^2/1!-x^4/3!+x^6/5!-x^8/7!+...+(-1)^(n+1)*x^2N/(2n+1)!编写程序用QB
cls
s=0
f=1
input x,n
for i=2 to n
p=1
for j= 1 to i-1
p=P*j
next j
s=s+(x^i)/p*f
f=-f
next i
print s
end
*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
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