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Example determines the first four derivatives for following.
y = cos x
Solution: Again, let's just do some derivatives.
y′ = - sin x
y′′ = - cos x
y′′′ = sin x
y( 4) = cos x
Note as well that cosine (and sine) will repeat each four derivatives. The other four trig functions will not demonstrate this behavior. You may desire to take a few derivatives to convince yourself of this.
Retail price index This is weighted average of price relatives based on an average household in the base year. The items consumed are divided into groups as liker food, transp
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what is a liter
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