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3 years ago

14

What Ln(z) is answer????!!

1 answer:

dimaraw [331]3 years ago

3 0

Write <em>z</em> in exponential form:

$z=1-i=\sqrt2 e^{-i\frac\pi4}$

Then taking the logarithm, we get

$\mathrm{Ln}(z)=\ln(\sqrt2) + \ln e^{-i\frac\pi4} = \boxed{\ln(\sqrt2)-\dfrac\pi4i}$

so a is the correct answer.

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2 years ago

A glass paperweight has a composite shape: a square pyramid fitting exacty on top of an 8 centimeter cube. The pyramid has a hei

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Step-by-step explanation:

Part 1) what is the volume of the paperweight?

we know that

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$V=\frac{1}{3}BH$

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Part 2) what is the total surface area of the paperweight?

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The total surface area of the paperweight is equal to the surface area of 5 faces of the cube plus the lateral area of the pyramid

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Find the surface area of 5 faces of the cube

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step 3

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