The equations of the 2 graphs shown below are
y1(t) = a1 sin(b1t) and y2(t) = a2 cos(b2t), where the constants
b1 and b2 are both positive real numbers.
Which of the following statements is true of the constants
a1 and a2 ?
A. 0 < a1 < a2
B. 0 < a2 < a1
C. a1 < 0 < a2
D. a1 < a2 < 0
E. a2 < a1 < 0