C. I and II only
The absolute value has to be greater than negative q. And p must be greater than the absolute value of q.
Menjawab:
[(√1-p²) -3√p] / 2
Penjelasan langkah demi langkah:
Dari identitas trigonometri, pemuaiannya benar:
Cos (A + B) = cosAcosB-sinAsinB
Menerapkan ini dalam memperluas cos (x + 60).
cos (x + 60) = cosxcos60 - sinxsin60
Jika sinx = p = berlawanan / sisi miring
opp = p, hyp = 1
adj² = 1²-p²
adj = √1-p²
Cos (x) = adj / hyp = √1-p² / 1
Cos (x) = √1-p²
Cos60 = 1/2 dan sin60 = √3 / 2
Mengganti nilai-nilai ini ke dalam rumus
cos (x + 60) = cosxcos60 - sinxsin60
cos (x + 60) = √1-p² (1/2) - p (√3 / 2)
cos (x + 60) = (√1-p²) / 2 - √3p / 2
Temukan KPK tersebut
cos (x + 60) = [(√1-p²) -3√p] / 2
Oleh karena itu cos (x + 60) = [(√1-p²) -3√p] / 2
Hello!
First, let's write the problem.
Subtract 10 from both sides.
Divide both sides by 9.
When we got absolute value, we are going to get two results.
and
Let's solve the first one,
Subtract 8 from both sides.
Let's solve the second one.
Subtract 8 from both sides.
Let's combine the ranges.
The attachment shows how would you graph it.
You can feel free to let me know if you have any questions regarding this.
Thanks!
- TetraFish
I would say D. point G would be the correct answer