Find the amplitude, period, and displacement of the function. Graph the function. Show at least one period. y= 7 sin (3x+2) Type the amplitude, period, and displacement of the function. = Amplitude 7 Period= 2 3 Displacement = - 3 (Simplify your answer. Type an exact answer, using it as needed. Use integers or fractions for any numbers in the expression.) Choose the correct graph of the function y = 7 sin (3x+2). ○ A. Q 2-27- 3元 2 3元 G O B. 403 3元 2-2 Зл Q G C. 2л-2 3元 × Q O D. G 2-2 3 -7- 3 x a G K Verify the following identity. cos 20= tan 20-1 1 + tan² 0 Which of the following four statements establishes the identity? 2 tan 0-1 tan 20-1 O A. cos 20 = sin 20- cos 2 0= 2 sec Ө 1 + tan² 0 2 tan 0-1 tan 20-1 B. cos 20= 2 sin 0 cos 0 = 2 sec Ө 1 + tan ² Ө tan 2 0-1 2 OC. - cos 20 = sin 20- cos² 0 = = 2 CSC Ө 2 tan 0-1 1 + tan 0 2 tan 2 0-1 2 tan 0-1 O D. - cos 202 sin 0 cos 0= CSC 20 1 + tan² 0