Question

Perform the following operation and determine an expression for e(t);
e(t)=10sin(omega t +30degrees)-10cos(omega t -45degrees)

Answer 1

10cos(90-wt-30) +10cos (wt-45)
10[cos(wt-60) +cos (wt-45)]

Answer 2

20cos(wt+105/2)cos(15/2)

Answer 3

\[6.08\cos (\omega t - 7.5)\]

Answer 4

Thank you!!