Question

Tg 0*tg1*tg3*tg5*tg 179

Answer 1

Т.к. tg0 = 0, то и всё произведение, содержащее tg0, равно нулю
tg0·tg1·tg3·tg5·tg179 = 0

Ответ: 0. 

Answer 2

It looks like you've provided a sequence of tangent (tg) functions multiplied together. However, it's not entirely clear what you're asking or what you want to know about this sequence. Could you please provide more context or clarify your question? Are you looking for a simplified form of this expression or some specific information related to it? The more details you provide, the better I can assist you.