Answer:
cos60°
Step-by-step explanation:
Using the cofunction identity
cos(90 - x) = sinx , then
sin30° = cos(90 - 30)° = cos60°
61 is the composite Number your welcome
Here's a list that might help:
Odd functions: sinx, tanx, cotx, cscx
Even functions: cosx, secx
1 and 16/25 is bigger than 1 and 5/8
Answer:
The fraction of black pieces left is
Step-by-step explanation:
Given as :
On the checkerboard , The fraction of red pieces left = 
Let The fraction of black pieces left = x
So, The fraction of black pieces left = x = 1 - 
Or, x = 
Or, x = 
Hence The fraction of black pieces left is
Answer