Tolong bantu dijawab ya​

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Tolong bantu dijawab ya​

Tolong bantu dijawab ya​

Jawab:
(a) x = 5 cm
(b) SinA = ⁵/₁₃
(c) TanA = ⁵/₁₂

Penjelasan dengan langkah-langkah:

Diketahui
b = 12 cm, c = 13 cm

Ditanya
(a) nilai x atau a
x = √(c²-b²)
x = √(13²-12²)
x = √(169-144)
x = √25
x = 5 cm

(b) SinA = x/c
SinA = ⁵/₁₃

(c) TanA = x/b
TanA = ⁵/₁₂

Maka A = sin⁻¹(⁵/₁₃) dan tan⁻¹(⁵/₁₂)

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