Question

函数题：已知函数f(x)=Asin(wx+a)(A>0,w>0,|a|0,w>0,|a|

Answer 1

1

A=2,-A=2

f(0)=Asina=1

sina=1/2

a=π/6

T/2=(x0+3/2)-x0

T=3=2π/w

w=2π/3

f(x)=2sin(2πx/3+π/6)

2

g(x)=af(x)+b

a>0时

g(x)最大=2a+b=6

g(x)最小=-2a+b=2

b=4,a=1

a