Question

Help plz? its Linear equations

Answer 1

Answer:

Step-by-step 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) = $\sqrt{0}$/2    =0

Sin(30)= $\sqrt{1}$/2     = 1/2

Sing(45) =$\sqrt{2}$ /2   =$\sqrt{2}$ /2

Sin(60)=$\sqrt{3}$/2   =$\sqrt{3}$/2

Sin(90)=$\sqrt{4}$/2    = 1

Cos is exactly the same but counts backwards from 90°

Cos(90) = $\sqrt{0}$/2    =0

Cos(60) = $\sqrt{1}$/2     = 1/2

Cos(45) =$\sqrt{2}$ /2   =$\sqrt{2}$ /2

Cos(30) = $\sqrt{3}$/2   =$\sqrt{3}$/2

Cos(0) =$\sqrt{4}$/2    = 1

Answer 2

Answer:

option c pair of linear equations in two variables