Type so I can read PLEASE

2.4 If the solid curve in Figure 2.14 represents sin(2t), what does the dotted curve rep- resent? That is, the dotted curve can be written in the form A sin(29ft + ); what are A, f, and ? 2.0 1.0 -1.0 -2.0 -0.5 0.5 Figure 2.14 Figure for Problem 2.4 2.6 Find the period of the function f(t) = (10 cost)