Answer:
Step-by-step explanation:
12
Cosx= sin(90-x)
From the RHS,
sin(90-x)= sin90cosx-cos90sinx
Since sin90=1, cos90=0
sin90cosx-cos90sinx=cosx-0=cosx (proven)
Answer:
there isn;t anything posted underneath
Step-by-step explanation:
You would add 12+15 then subtract it from 32 to get your missing varible
Answer:
option 1
Step-by-step explanation:
step 1
Find the arc length of the complete circle
The circumference of the circle ios given by

we have

substitute


step 2
Find the arc length for a sector with a cenytral angle of 30 degrees
we know that
The complete circle subtends a central angle of 360 degrees
so
using proportion
