The general form and standard form might be mixed up but I know for sure one of the equations is right
Answer:

Step-by-step explanation:
Use these formulas

Now solve

Answer: -p - 30
Step-by-step explanation:
X+y+z = 132
x = 7+z
y = 3z
(7+z)+3z+z = 132
5z = 132-7
z = 125/5
z = 25 <=====
x = 7+z
x = 7 + 25
x = 39 <=====
y = 3z
y = 3 × 25
y = 75 <=====
hope it helps :)
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