Question

Даю все баллы, что есть. Буду очень признателен.

Answer 1

1.

$\sin(x) = \frac{7}{10} \\ \sin(x) = 0.7 \\ x = {( - 1)}^{k} arcsin(0.7) + \pi \: k$

2.

k = 5

$x = {( - 1)}^{5} arcsin(0.7) + 5\pi = \\ = - arcsin(0.7) + 5\pi$

3

$tgu = 9 \\ u = arctg9 + \pi \: k$

Answer 2

Ответ:

.

\begin{gathered} \sin(x) = \frac{7}{10} \\ \sin(x) = 0.7 \\ x = {( - 1)}^{k} arcsin(0.7) + \pi \: k\end{gathered}

sin(x)=

10

7

sin(x)=0.7

x=(−1)

k

arcsin(0.7)+πk

2.

k = 5

\begin{gathered}x = {( - 1)}^{5} arcsin(0.7) + 5\pi = \\ = - arcsin(0.7) + 5\pi\end{gathered}

x=(−1)

5

arcsin(0.7)+5π=

=−arcsin(0.7)+5π

3

\begin{gathered}tgu = 9 \\ u = arctg9 + \pi \: k\end{gathered}

tgu=9

u=arctg9+πk