If a sunspot has a temperature of 3900 K and the photosphere of the Sun has a temperature of 5760 K, how many times
brighter per unit area is the photosphere than the sunspot?

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Ответ:

maddielr17

08.10.2022

Mathematics

Negative

Step-by-step explanation:

Given is an angle 5pi/4 and we have to find sine value

Since 5pi/4 lies in III quadrant using All silver tea cups rule, sine will be negative.

Principal value for

$\frac{5\pi}{4} is \frac{\pi}{4}$

Hence sin $=\frac{5\pi}{4} =\frac{-1}{\sqrt{2} }$

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If a sunspot has a temperature of 3900 K and the photosphere of the Sun has a temperature of 5760 K, how many times brighter per unit area is the photosphere than the sunspot?