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2 years ago

If f(7)=22, then f^-1(f(7))=? Please help!!

Mathematics

1 answer:

alexira [117]2 years ago

7 0

Answer:

Step-by-step explanation:

In general, the point of an inverse function is to show you the value that gives a particular function value. That is, ...

$f^{-1}(22)=7\\\\f^{-1}(f(x))=x\\\\f^{-1}(f(7))=7$

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2 years ago

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3 years ago

Consider w=sqrrt2/2(cos(225°) + isin(225°)) and z = 1(cos(60°) + isin(60°)). What is w+ z expressed in rectangular form?

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Answer:

Option (3)

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= - $\frac{\sqrt{2}}{2}$

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= -sin(45)

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Therefore, w = $\frac{\sqrt{2}}{2}[-\frac{\sqrt{2}}{2}+i(-\frac{\sqrt{2}}{2})]$

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