Q$\mathrm{.}4$: $(1-3)$ What is the value of definite integral of function $f(x)=5$ between points $x_1=1$ and $x_2=5?$

Q$\mathrm{.}5$: $(1-4)$ What is the value of definite integral of function $f(x)=x^2$ between points $x_1=1$ and $x_2=5?$

Q$\mathrm{.}6$: $(1-5)$ What is the value of definite integral of function $f(x)=e^{2x}$ between points $x_1=1$ and $x_1=5?$

Q$\mathrm{.}7$: $(1-5)$ What is the value of definite integral of function $f(x)=e^{-2t}$ between points $x_1=1$ and $x_1=5?$

Q$\mathrm{.}8$: $(1-6)$ What is the value of definite integral of function $f(x)=\frac{1}{x}$ between points $x_1=1$ and $x_2=5?$

Q$\mathrm{.}9$: and $1-6$ What is the value of definite infegraf of function $f(x)=\frac{5}{x}$ between points $x_1=1$ and $x_2=5?$

Q$\mathrm{.}10$: $(1-7)$ What is the value of definite integral of function $f(x)=sin3x$ between points $x_1=1$ and $x_2=5?$