I'd say its D but im not quite sure, its what makes most sense to me.
You divide the numerator by the denominator
y = florida's number of countries x = countries in Arizona
y=5x-8
Answer:
Equation 1 has no solution. Equation 2 does. The correct answer would be D.
Given data
<span>sin (x+pi/2)=cos x
</span>now using sin law
sin(a+b)=sin(a)cos(b)+cos(a)sin(b)
now using above values
sin(pi/2+x)=sin(pi/2)cos(x)+cos(pi/2)sin(x)
as we know that
sin(pi/2)=1
cos(pi/2)=0
now putting these values
sin(pi/2+x)=1*cosx+0*1
sin(pi/2+x)=cosx
hence proved that
<span>sin (x+pi/2)=cos x</span>
