Question

Daca n = sin 30 : cos 60 + tg 45 : ctg 45 => n = ?

Answer 1

sin 30 = 1/2
cos 60 = 1/2
tg 45 = 1
ctg 45 = 1
1/2 : 1/2 = 1/2 x 2/1 = 1
1 : 1 = 1
=> n = 1 + 1 = 2

Answer 2

n= 1/2 : 1/2 + 1 : 1

n= 1 + 1

n= 2