Question

determine a medida do Ângulo formado pelas retas r: 4x-y + 3 =0 e s: x+2y-1=0.(1,0ponto)​

Answer 1

Resposta:

r: 4×-y + 3 = 0 e s: ×+ 2y-1= 0

resposta:

r:=0+2=2-5=3

s:=0+3=3-2=1

total:2²