Answer:
cos 15 degrees is your answer.
Answer choice (b)
The sign of f on the interval -5/3 is negative
<h3>How to determine the sign?</h3>
The function is given as:
f(x)=(2x−1)(3x+5)(x+1)
The zeros of the function are
x= -5/3, x= -1 and x= 1/2
Next, we plot the graph of the function
At x = -5/3, the function approaches negative infinity
This means that the sign of f on the interval -5/3 is negative
Read more about function intervals at:
brainly.com/question/27831985
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2 less than n is n-2
And
n plus n is 2n
1) B
2) C
can you help me? since I helped you?
I think you might need to be more specific..