We first need dy/dx.
dy/dx = -2sin(x/2)(1/2)
dy/dx = -sin(x/2)
We now find d^2y/dx^2.
d^2y/dx^2 = -cos(x/2)(1/2)
d^2y/dx^2 = -(1/2)cos(x/2)
<u>Answer:</u>
<u>given:</u>
- adjacent side: 10
- hypotenuse side: 20
<u>using cosine rule:</u>
Answer:
n = 40
Step-by-step explanation:
n - 12 = 28
add 12 to both sides to remove the negative 12
n = 28 + 12
n = 40
Step-by-step explanation:
X+4 is prime. X2-9can be factored using the formula
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