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3 years ago

Let f and g be the function defined by f(x) =x-10 and g(x) = 4 - x and then value of (f-g) (5) is ??

Mathematics

1 answer:

lions [1.4K]3 years ago

4 0

Answer:

$f - g = x - 10 - 4 + x = 2x - 14 \\ f - g(5) =10 - 14 = - 4$

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A number written in the form a + bi is called a _____ number.

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The answer is complex number

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the imaginary part is the 'bi' part of the a+bi

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What is the correct justification for the indicated steps?

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The given proof of De Moivre's theorem is related to the operations of

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The given proof is presented as follows;

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$\left[cos(\theta) + i \cdot sin(\theta) \right]^{k + 1} = \mathbf{\left[cos(\theta) + i \cdot sin(\theta) \right]^{k} \cdot \left[cos(\theta) + i \cdot sin(\theta) \right]}$

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Step B: By expanding, we have;

$\left[cos(k \cdot \theta) + i \cdot sin(k \cdot \theta) \right] \cdot \left[cos(\theta) + i \cdot sin(\theta) \right] = cos(k \cdot \theta) \cdot cos(\theta) - sin(k \cdot \theta) \cdot sin(\theta) + i \cdot \left [sin(k \cdot \theta) \cdot cos(\theta) + cos(k \cdot \theta) \cdot sin(\theta) \right]$

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brainly.com/question/11000934

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