Pertanyaan

Nilai cos 3 0 ∘ . sin 3 0 ∘ sin 9 0 ∘ . sin 6 0 ∘ = .......

Nilai $\frac{sin 9 0 ^{\circ} . sin 6 0 ^{\circ}}{cos 3 0 ^{\circ} . sin 3 0 ^{\circ}} = .......$

2
1
0
-1

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$fraction numerator size 12px sin size 12px space size 12px 90 size 12px degree size 12px. size 12px sin size 12px space size 12px 60 size 12px degree over denominator size 12px cos size 12px space size 12px 30 size 12px degree size 12px. size 12px sin size 12px space size 12px 30 size 12px degree end fraction size 12px equals fraction numerator size 12px 1 begin mathsize 12px display style.1 half end style square root of size 12px 3 over denominator begin mathsize 12px display style 1 half square root of 3.1 half end style end fraction size 12px equals size 12px 2 size 12px space$