12 points! on monday ethan sends an email to 3 friends the next day each of the 3 friends forward the email to 3 friends and so on as shown below how many people received the email by thursday? monday 3 tuesday 3 times 3 wednesday 3 times 3 times 3 the answer is not 81

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

find the magnitude of the trig term  

csc

(

x

)

−

1

by taking the absolute value of the coefficient.

1

find the lower bound of the range.

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y

=

−

2

find the upper bound of the range.

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y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation: