Question

Help plz?

its Linear equations

Answer 1

Explanation:

trig reminder

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

Sin(0) =
`√(0)`/2 =0

Sin(30)=
`√(1)`/2 = 1/2

Sing(45) =
`√(2)` /2 =
`√(2)` /2

Sin(60)=
`√(3)`/2 =
`√(3)`/2

Sin(90)=
`√(4)`/2 = 1

Cos is exactly the same but counts backwards from 90°

Cos(90) =
`√(0)`/2 =0

Cos(60) =
`√(1)`/2 = 1/2

Cos(45) =
`√(2)` /2 =
`√(2)` /2

Cos(30) =
`√(3)`/2 =
`√(3)`/2

Cos(0) =
`√(4)`/2 = 1

Answer 2

option c pair of linear equations in two variables