$v_2(t)=5cos(400t+150)$

$v_2(t)=5cos(100t+150)$

$v_2(t)=5cos(100t+150)$

$v_2(t)=5cos(200t+30)$

$v_2(t)=5cos(400t+30)$

$v_2(t)=5cos(200t+150)$

Part C

Select the correct expression for $v_3(t)$ voltage in the form $V_{m}cos(t+)$

ANSWER:

$v_3(t)=10cos(200t+90)$

$v_3(t)=10cos(100t)$

$v_3(t)=10cos(100t+90)$

$v_3(t)=10cos(200t)$

$v_3(t)=10cos(400t)$

$v_3(t)=10cos(400t+90)$