设f(x)=ax^5-b/x+5,f(-7)=-17求f(7)

问题描述:

设f(x)=ax^5-b/x+5,f(-7)=-17求f(7)

f(-7) = -17
a×(-7)^5 - b/(-7) + 5 = -17
-a×7^5 + b/7 = -22
a×7^5 - b/7 = 22
f(7)
= a×7^5 - b/7 + 5
= 22 + 5
= 27