Cos (A - B) = cos A cos B + sin A sin B
cos (A + B) = cos A cos B - sin A sin B
cos 2x = cos (3x - x) = cos 3x cos x + sin 3x sin x
cos 4x = cos (3x + x) = cos 3x cos x - sin 3x sin x
1/2(cos 2x - cos 4x) = 1/2(cos 3x cos x + sin 3x sin x - cos 3x cos x + sin 3x sin x) = 1/2(2 sin 3x sin x) = sin 3x sin x.
Answer:
The volume of the cylinder would be 1539.38
Answer: The sequence does not have common ratio.
Step-by-step explanation:
By definition, a sequence with a constant ratio (common ratio) between terms is called a "Geometric sequence". In order to find the common ratio, it is necessary to divide any term in the sequence by the previous term.
In this case, given the sequence:

We get:

Since the ratios between the terms are not constant, we can conclude that <em>the sequence does not have common ratio.</em>
Answer:
yup it's d
Step-by-step explanation:
Answer:
Terminating decimals have a finite number of digits after the decimal point while Repeating decimals have one or more numbers or sequences of repeating numbers after the decimal point.
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