高一数学详解
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f(x)=Asin(ωx+φ),最高点(2,2√笑李漏2),所以; A=2√2, 周期T=16, T=2π/ω, ω=π/8
起点坐标;(-φ/ω, 0)=(-2, 0) , -φ/ω=-2, φ=π/4
f(x)=2√2sin(π/8x+π/4)
递增:2kπ-π/2<碰烂π/8x+π/4<2kπ+π/2, 16k-6<x<16k+2 , k∈z
递减:2kπ+π/2<π/8x+π/4<2kπ+3π/2, 16k+2<x<扰键16k+10 , k∈z
起点坐标;(-φ/ω, 0)=(-2, 0) , -φ/ω=-2, φ=π/4
f(x)=2√2sin(π/8x+π/4)
递增:2kπ-π/2<碰烂π/8x+π/4<2kπ+π/2, 16k-6<x<16k+2 , k∈z
递减:2kπ+π/2<π/8x+π/4<2kπ+3π/2, 16k+2<x<扰键16k+10 , k∈z
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