Answer:

Step-by-step explanation:
Given

Required
Determine an equivalent expression
In trigonometry:

In 

Substitute
for
in 


Hence, the equivalent expression is: 
Im actually pretty sure its C because 4 to the power of 2 is 16 and then add those too up 16+25=41
Answer:
i think it is 8/125
Step-by-step explanation:
slect B
Answer:
16x11/y (i hope)
Step-by-step explanation: