Question

(文)已知簡(jiǎn)諧運(yùn)動(dòng)f(x)=2sin(x+φ)(|φ|＜)的圖象經(jīng)過點(diǎn)(0,1),則該簡(jiǎn)諧運(yùn)動(dòng)的最小正周期T和初相φ分別為

A.T=6,φ=       B.T=6,φ=             C.T=6π,φ=      D.T=6π,φ=

Answer 1

答案：(文)A  T==6,圖象過(0,1)點(diǎn),∴1=2sinφ.∴sinφ=.∴φ=.