Find the measure of angle A.

m∠A = 108º

Step-by-step explanation:

The total of the angles in a four sides figure is 360

x + 2x + 3x + 4x = 360

Combine like terms

10x = 360

Divide both sides by 10

x = 36

m∠A = 3x

m∠A = 3(36)

m∠A = 108

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.

tap for more

y

=

−

2

find the upper bound of the range.

tap for more

y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation: