Question

Sint=3/4 найти tgt=?

Answer 1

tg t = $\frac{sin t}{cos t}$;
cos t = $\frac{+}$$\sqrt{1-sin^{2} t }$;
cos t = $\frac{+}$$\sqrt{1 - \frac{9}{16} }$;
cos t = $\frac{+}$$\sqrt{ \frac{7}{16} }$;
cos t = $\frac{+}$$\frac{ \sqrt{7} }{4}$;
=> tg t = $\frac{ \frac{3}{4} }{ \frac{ \sqrt{7} }{4} }$;
tg t = $\frac{+}$$\frac{3}{ \sqrt{7}}$;
tg t = $\frac{+}$$\frac{3 \sqrt{7} }{7}$;