Помогииитеее!! A) sinα cosα tgα =?? Б) sinα cosα ctgα -1 =??

Question

Помогииитеее!!
A) sinα cosα tgα =??
Б) sinα cosα ctgα -1 =??

Answer 1

[tex]2. = sina cosa \frac{cosa}{sina} -sin a^{2} -cos a^{2} =-sin a^{2} " alt="sinacosa \frac{sina}{cosa} =sin a^{2} [tex]2. = sina cosa \frac{cosa}{sina} -sin a^{2} -cos a^{2} =-sin a^{2} " align="absmiddle" class="latex-formula">