Question

tolong bantuannya kak, jangan ngasal aku butuh cara cari nya!!!​

Answer 1

Verified answer

trigonometri

a.

Jika diketahui besar sudut (sudut istimewa),

panjang sisi tidak mempengaruhi nilai sin cos tan

jumlah sudut pd segitiga = 180°

90° + 60° + β = 180°

β = 30°

sin β = sin 30° = 1/2

cos β = cos 30° = 1/2 √3

tan β = tan 30° = 1/3 √3

•

anggap segitiga siku-siku

sisi depan sudut β = y

sisi samping sudut β = x = 25

sisi miring segitiga = r = 26

y = √(r² - x²)

y = √(26² - 25²)

y = √((26 + 25)(26 - 25))

y = √51

sin β = y/r = √51 /26

cos β = x/r = 25/26

tan β = y/x = √51 /25

Answer 2

Penjelasan dengan langkah-langkah:

a.

sudut 30 60 90

basic sisi 1 ; V3 ; 2

diketahui b = 6V3

sin B = 30° = 6V3 : r = 1/2

r = 2 × 6V3 = 12V3

cos B = 30° = x/r = V3/2

x = r . V3 /2 = 12V3 .V3/2 = 6.3 = 18

sin B= b/r =6V3 / 12V3 = 1/2

cos B = x/r = 18/12V3 = 3/2V3 = 1/2 V3

tan B = 1/2 × 2/V3 =1/V3 = 1/3 V3

b.

b = V26^2 - 25^2 = V676 - 625 = V51

sin B = V51/26

cos B = 25/26

tan B = V51/26 × 26/25 = V51/25

request = soal yg b

lebih mudah jk komposisi sisi triple pythagoras

7 24 25 ato 10 24 26 spy angka populer