<span>2cos^2x = sin2x
2cos^2x = 2sin x cos x
(2sin x cos x) / (2cos^2x) = 1
sin x / cos x = 1
tan x = 1
x = π/4</span>
Remember
(a/b)/(c/d)=(a/b)(d/c)=(ad)/(bc)
convert to improper fractions
8 and 1/2=8+1/2=16/2+1/2=17/2
2 and 1/4=2+1/4=8/4+1/4=9/4
8 and 1/2 divided by 2 and 1/4=
(17/2)/(9/4)=
(17/2)(4/9)=
(17*4)/(2*9)=
68/18=
34/9=
27/9+7/9=
3+7/9=
3 and 7/9
Answer:
x<-6
Step-by-step explanation:
-3x>18
Divide by -3, flip the sign since dividing by a negative.
x<-6
Answer:
100 students selected randomly as their enter your middle school in the morning
Step-by-step explanation:
