cos(3x) = cos(2x+x)
= cos(2x) cos (x) -sin(2x)sin(x)
Answer:
This true because why ?
Step-by-step explanation:
Answer: -134.5
Step-by-step explanation:
4(-6^2+3) - 2 - 1/2 Exponents first
4(-36 +3) - 2 - 1/2 Now solve the parentheses
4(-33) -2 -1/2
-132- 2 -1/2
-134 - 1/2 = -134.5
Answer:
-75
Step-by-step explanation:
Let us consider the first odd number to be 'x'.
Thus:
- 1st odd number: x
- 2nd odd number: x+2
- 3rd odd number: x+3
According to the question, the sum of these three consecutive ODD numbers should be equal to -219
So,
x + x + 2 + x + 4 = -219
3x + 6 = -219
3x = -225
x = -75
Answer:
b
Step-by-step explanation: