1 - cos (135) sin (135)
using a half-angle identity.
Rewrite
O A.
Cos 270°
O B.
tan 67.5°
OC. cos 67.5°
OD.
tan 270°

step-by-step explanation:

answer: 1inch=7days  

12inch=12*7=84days

step-by-step explanation:

answer: no

step-by-step explanation: because the big angle will spread away the 2 side that it is on and make the opposite side even longer.

6^2 or 36

step-by-step explanation:

6000n

6×1000n

6×10^3 n

so we need 6n need to be a perfect cube

so n has to be 6^2 so that 6n is 6^3

what i'm saying is if you let n be 6^2 you have 6^3×10^3 or 60^3 which is a perfect cube