sure dude whats the question?
Answer:
sinx
Step-by-step explanation:
hello :
note :
for all x in ℝ : 1) sin(x+2π) = sinx 2) sin(π-x) = sinx
in this exercice :
3π - x = 2π+(π - x)
sin(3π - x) = sin(2π +(π - x)) =sin(π-x) = sinx
15+7+(-2)=22-2=20 hunx
5
As corresponding lines are equal
16x+1 = 79
16x = 80
x = 5
