Question

if f1(t)=3sin(5t), f2(t)=cos(5t). find f(t)=f1(t)+f2(t)​

Answer 1

Step-by-step explanation:

$\sf {f}_{1}(t) = 3 sin\: 5t \:and\:{f}_{2}(t) = cos\:5t \\ \\ \sf f(t) = {f}_{1}(t) + {f}_{2}(t) \\ \\ \sf = 3sin\:5t + cos\:5t$

Answer 2

Step-by-step explanation:

\begin{gathered}\sf {f}_{1}(t) = 3 sin\: 5t \:and\:{f}_{2}(t) = cos\:5t \\ \\ \sf f(t) = {f}_{1}(t) + {f}_{2}(t) \\ \\ \sf = 3sin\:5t + cos\:5t\end{gathered}

f

1

(t)=3sin5tandf

2

(t)=cos5t

f(t)=f

1

(t)+f

2

(t)

=3sin5t+cos5t