Luckiegirl28id
Answered

Really need some help on this please!
what is the amplitude of the sinusoid given by y=-4 cos(2x)?

Sagot :

Sugarmateid
Amplitude is absolute value of (-4) = 4.
Panoyinid
y = -4cos2x
y =-4(0.9995065604x)
y = -3.998026241x