Question

Se considera multimea U={30°;45° ;60° }.Determinati imaginile functiilor :
a. s:U⇒ R, S(x) = sin x ;
b. t:U⇒ R,t(x)=tgx
Va rog in seara asta daca puteti !

Answer 1

Răspuns:

a. sin30= 1/2

sin45= (rad2)/2

sin60= (rad3)/2

Imf = {1/2 ; (rad3)/2 ; (rad2)/2}

b. tg30= (rad3)/3

tg45=1

tg60= rad3

Imf={1 ; (rad3)/3 ; rad3}