Solve the matrix equation. the inverse of the coefficient matrix is given.

C

Step-by-step explanation:

If we call [x y z]^T big X and the other matrices A and b

AX=b

A^-1 is the inverse, times both sides by it

A^-1 A X=A^-1 b

A^-1 A X = I X = X where I is the identity matrix

so X = A^-1 b

doing this matrix multiplication gives us c

don't know sorry bru

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.

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: