Answer:
Let
, we proceed to prove the trigonometric expression by trigonometric identity:
1)
Given
2)

3)
4)

5) 
6)

7)
Result
Step-by-step explanation:
Let
, we proceed to prove the trigonometric expression by trigonometric identity:
1)
Given
2)

3)
4)

5) 
6)

7)
Result
I think it is a square because a square has 4 equal sides and four right angles I hope this helped u!
Answer:
Rational
Step-by-step explanation:
Repeating decimals can be represented as a ratio of two integers.
Answer:
if you go on calculator soup just input the numbers and what type of triangle it is and it will solve it for you
(-5/3)^3 * 1/5=
-125/27 * 1/5=
-125/135=
-25/27