Answer:
it is 3.6
Step-by-step explanation:
it's in the pictures below.
b.) cos((π/2)-Ф)=-3/5 is true because :
cos((π/2)-Ф)= sin(Ф)
x = 1 is correct !
Answer:r=rrrrr=rrrrrrr=rrrrrrrrr=rrrrr=rrrrr=
