Answer:

Step-by-step explanation:
see the attached figure to better understand the problem
we know that
----> by angle addition postulate
substitute the given values

Compare the numbers using <, >, or =. 0.78 ___ 0.708 < > =

The given figure shows a vertical hyperbola with its centre at origin, and as we observe the figure, we can conclude that :
Length of transverse axis is :


length of conjugate axis is :


Equation of hyperbola ~

plug in the values ~


Answer:
Equivalent expression of
is, 
Step-by-step explanation:
The distributive property says that:

Given the expression: 
Apply the distributive property:

Simplify:

Therefore, the equivalent expression of
is, 
Answer:
5525
Step-by-step explanation:
Using the formula with n = 25 , then

= 
= 
= 5525