Answer:
b
Step-by-step explanation:
V = -5 because you subtract 4 from both sides then divide both sides by -7 and you get -5
Answer:
85-7-19 or 85-26
Step-by-step explanation:
Answer:
107/33
Step-by-step explanation:
107/33 is the rational number equivalent to 3 point 24 with a bar over 24.
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>
