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Graph y = cos (x)
Solution: There actually isn't a whole lot to this one. Given the graph for -4 ? ≤ x ≤ 4 ? .
Note that we can put all values of x in cosine (that won't be the case for most of the trig functions) and hence the domain is all real numbers. Also note that -1 ≤ cos ( x ) ≤ 1
It is significant to notice that cosine will never be larger than 1 or smaller than -1. Generally we can say that -R ≤ R cos (? x ) ≤ R
If z=re i ? ,find the value of |e iz | Solution) z=r(cos1+isin1) |e iz |=|e ir(cos1+isin1) |=|e -rsin1 |=e -rsin1
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A photographer decides to decrease a picture she took in sequence to fit it within a certain frame. She requires the picture to be one-third of the area of the original. If the ori
To begin with we have counting numbers. These numbers are also known as natural numbers and are denoted by a symbol 'N'. These numbers are obtai
terminology and requirements of linear programming
Differentiate following functions. h (t ) = 2t 5 + t 2 - 5 / t 2 We can simplify this rational expression as follows. h (t )
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