{ 4х+у=-10 { у=-10-4х
{ 5х-2у=-19 { 5х-2(-10-4х)=-19
5х+20+8х=-19
5х+8х=-19-20
13х=-39
х=-39/13
х=-3
у=-10-4*(-3)
у=-22
Ответ:
Объяснение:
36 × tg 3° × tg93° = 1,872 × -19,018 = -35,601
tg3°=0,052
tg93° = -19,081
-35,601 = tg-88°