If r(x) = 2 – x2 and w(x) = x – 2, what is the range of (w*r)(x)
2 answers:
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Standard form is a+bi where a and b are real numbers
remeber that i²=-1
ok
we got to get the i out of the denomenator
remember the differnce of 2 perfect squares where (a-b)(a+b)=a²-b²
so multiply the whole thing by
we get
in standard form, it is
remeber that i²=-1
ok
we got to get the i out of the denomenator
remember the differnce of 2 perfect squares where (a-b)(a+b)=a²-b²
so multiply the whole thing by
we get
in standard form, it is