Answer:78.5 cm^2
Step-by-step explanation:A = pi xr^2
3.14x5x5
3/4 of the circle is shaded because there is 4 parts and only 3 are shaded in
Answer:
sec(- θ ) = secθ
Step-by-step explanation:
The relationship between sec and cos is
sec x = 
Now cos(- x) = cosx
Thus
sec(- θ ) = secθ
Um I think it's like because there's a zero difference like ten thousands have more zeros