Question

Tg24 + tg21/ 1-tg21*tg24

Answer 1

$\frac{tg24^{0}+tg21^{0}}{1-tg24^{0}*tg21^{0}}=tg(24^{0}+21^{0})=tg45^{0}=1\\\\Otvet:\boxed{1}$

Answer 2

To simplify the expression (Tg24 + Tg21) / (1 - Tg21 * Tg24), let's denote Tg24 as x and Tg21 as y:

So, the expression becomes (x + y) / (1 - xy).

Please provide the values of Tg24 and Tg21, and I'll calculate the result for you.