Question Number 129616 by MathSh last updated on 16/Jan/21
$${tg}^{\mathrm{2}} \mathrm{10}+{tg}^{\mathrm{2}} \mathrm{50}+{tg}^{\mathrm{2}} \mathrm{70}=? \\ $$
Commented by liberty last updated on 17/Jan/21
$$\mathrm{ans}\::\:\mathrm{9}\: \\ $$
Commented by MathSh last updated on 17/Jan/21
$${Thanks}\:{Sir},\:{solution}? \\ $$
Commented by talminator2856791 last updated on 17/Jan/21
$$\:\mathrm{if}\:\mathrm{you}\:\mathrm{want}\:\mathrm{to}\:\mathrm{send}\:\mathrm{answer}\:\mathrm{please} \\ $$$$\:\mathrm{put}\:\mathrm{it}\:\mathrm{as}\:\mathrm{answer},\:\mathrm{not}\:\mathrm{as}\:\mathrm{a}\:\mathrm{comment}, \\ $$$$\:\mathrm{as}\:\mathrm{it}\:\mathrm{helps}\:\mathrm{those}\:\mathrm{looking}\:\mathrm{for}\:\mathrm{unanwsered} \\ $$$$\:\mathrm{questions}\:\mathrm{in}\:\mathrm{the}\:\mathrm{filter}. \\ $$
Commented by liberty last updated on 18/Jan/21
$$\mathrm{well}...\mathrm{well}....\mathrm{well} \\ $$