Банк заданий: Вычисление триг.функцию используя значение другой функции



1 Найдите $$ \cos (x) $$, если $$ \sin (x) $$ = $$ \frac{\sqrt{51}}{10} $$ и $$ 0 $$ < $$ x $$ < $$ 90 {}^{\circ} $$
2 Найдите $$ \sin (x) $$, если $$ \cos (x) $$ = $$ \frac{3}{5} $$ и $$ 0 $$ < $$ x $$ < $$ 90 {}^{\circ} $$
3 Найдите $$ \cos (x) $$, если $$ \sin (x) $$ = $$ \frac{4}{5} $$ и $$ 90 {}^{\circ} $$ < $$ x $$ < $$ 180 {}^{\circ} $$
4 Найдите $$ \sin (x) $$, если $$ \cos (x) $$ = $$ -\frac{\sqrt{21}}{5} $$ и $$ 90 {}^{\circ} $$ < $$ x $$ < $$ 180 {}^{\circ} $$
5 Найдите $$ \cos (x) $$, если $$ \sin (x) $$ = $$ -\frac{4}{5} $$ и $$ 180 {}^{\circ} $$ < $$ x $$ < $$ 270 {}^{\circ} $$
6 Найдите $$ \sin (x) $$, если $$ \cos (x) $$ = $$ -\frac{3 \sqrt{11}}{10} $$ и $$ 180 {}^{\circ} $$ < $$ x $$ < $$ 270 {}^{\circ} $$
7 Найдите $$ \cos (x) $$, если $$ \sin (x) $$ = $$ -\frac{\sqrt{21}}{5} $$ и $$ 270 {}^{\circ} $$ < $$ x $$ < $$ 360 {}^{\circ} $$
8 Найдите $$ \sin (x) $$, если $$ \cos (x) $$ = $$ \frac{\sqrt{15}}{4} $$ и $$ 270 {}^{\circ} $$ < $$ x $$ < $$ 360 {}^{\circ} $$
9 Найдите $$ \cos (x) $$, если $$ \sin (x) $$ = $$ \frac{4}{5} $$ и $$ 0 $$ < $$ x $$ < $$ 90 {}^{\circ} $$
10 Найдите $$ \sin (x) $$, если $$ \cos (x) $$ = $$ \frac{\sqrt{15}}{8} $$ и $$ 0 $$ < $$ x $$ < $$ 90 {}^{\circ} $$