Pertanyaan

Tentukan nilai dari fungsi trigonometri berikut: a. S in 4 5 ∘ cos 6 0 ∘ + tan 4 5 ∘ cos 4 5 ∘

Tentukan nilai dari fungsi trigonometri berikut:

a. $S in 4 5^{\circ} cos 6 0^{\circ} + tan 4 5^{\circ} cos 4 5^{\circ}$

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Klaim

Y. Umi

Master Teacher

Mahasiswa/Alumni Universitas Gadjah Mada

Jawaban terverifikasi

Pembahasan

$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell S in space 45 degree space cos space 60 degree plus tan space 45 degree space cos space 45 degree end cell equals cell fraction numerator square root of 2 over denominator 2 end fraction times 1 half plus 1 times fraction numerator square root of 2 over denominator 2 end fraction end cell row blank equals cell fraction numerator square root of 2 over denominator 4 end fraction plus fraction numerator 2 square root of 2 over denominator 4 end fraction end cell row blank equals cell fraction numerator square root of 2 plus 2 square root of 2 over denominator 2 end fraction end cell end table end style$