4 (e)
sin^8 x - cos^8 x
= (sin^4 x + cos^4 x)(sin^4 x - cos^4 x)
= (sin^4 x + cos^4 x)(sin^2 x - cos^2x)(sin^2 x +cos^2 x)
= (sin^4x + cos^4 x)( sin^2 x- cos^2 x)
Sorry I cant do 4 (d).
E+r=
(e=9)
r=1.50)
or 9+1.50=
I think
Answer:
stuff
Step-by-step explanation:
i do not know
The small and large triangles are similar
so 3 / (3+3) = 9 / AC
9 / AC = 1/2
#AC = 18 ft Answer
