
As we know:

For:

Therefore:

Therefore, the statement is true
Property of zero as an exponent
5/3
Csc is equal to 1/sin
Sin= opposite/hypotenuse
So just take the inverse of what sine would be
Sin= 3/5
So Csc=5/3 :)
Step-by-step explanation:
8/26 part of a year is 8 fortnights
You don't say if the answer needs to be rounded
the height is 77.27 meters ( not rounded)
see attached picture for solution: