Answer: B and C
Step-by-step explanation: For A, vertical angles can be complimentary or supplementary. For D, vertical angles can sometimes be acute but not always.
<span>sin A cos B=1/2[sin(A-B)+sin(A+B)]
sin(at)*cos(2at)=1/2[sin(3at)-sin(at)]</span>
<span>
</span><span>
</span>
Answer:
1 X 16 and 8 X2
Step-by-step explanation:
1 X 16 = 16
2 X 8 = 16
3 X nothing = 16
4 X 4 = 16
5 X nothing = 16
6 X nothing = 16
7 X nothing = 16
8 X 2 = 16
etc.
Answer:
Step-by-step explanation:
Hello, I believe that we can consider a different from 0.
By definition of the roots we can write.

Thank you
Answer:
720
Step-by-step explanation:
125tablets, 2 of which had broken screens.
multiply 45000 by 2, then divide 125=720