Nilai dari (sin² 60°⋅tan² 30°+cos² 30° tan² 60°)/(sin30°⋅cos 60°) adalah ….

Nilai dari (sin² 60°⋅tan² 30°+cos² 30° tan² 60°)/(sin30°⋅cos 60°) adalah ….
a 4
b 3
c 1
d. 9

Jawaban yang benar adalah 10 (tidak ada di opsi)

Ingat kembali:
sin 30⁰ = 1/2
sin 60⁰ = √3/2
cos 30⁰ = √3/2
cos 60⁰ = 1/2
tan 30⁰ = √3/3
tan 60⁰ = √3

(sin²60⁰ × tan²30⁰ + cos²30⁰ × tan²60⁰)/(sin 30⁰ × cos 60⁰)
= {(√3/2)² × (√3/3)² + (√3/2)² × (√3)²}/{(1/2)× (1/2)}
= {(3/4) × (3/9) + (3/4) × 3}/(1/4)
= {(3/4) × (1/3) + (3/4) × 3}/(1/4)
= {(1/4) + (9/4)}/(1/4)
= {(1 + 9)/4}/(1/4)
= (10/4)/(1/4)
= (10/4) × (4/1)
= 10

Jadi, nilai dari (sin²60⁰ × tan²30⁰ + cos²30⁰ × tan²60⁰)/(sin 30⁰ × cos 60⁰) adalah 10
Oleh karena itu, tidak ada jawaban yang benar

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