Use trigonometric identities to transform one side of the equation into the other (0 < < T/2). (CSC(0) + cot(O))(cSC(O) – cot(0)) = csc?(0)
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= 1

answer: it's d

step-by-step explanation:

804.75

step-by-step explanation:

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

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