Pertanyaan

Nilai dari sec 30 0 ∘ + cot 21 0 ∘ = …

Nilai dari $sec 30 0^{\circ} + cot 21 0^{\circ} = \dots$

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Jawaban terverifikasi

Jawaban

Nilai dari .

Nilai dari sec space 300 degree plus cot space 210 degree equals 2 plus square root of 3

Pembahasan

Perhatikan perhitungan berikut! Jadi, Nilai dari .

Perhatikan perhitungan berikut!

$table attributes columnalign right center left columnspacing 0px end attributes row cell sec space 300 degree plus cot space 210 degree end cell equals cell fraction numerator 1 over denominator cos space 300 degree end fraction plus fraction numerator cos space 210 degree over denominator sin space 210 degree end fraction end cell row blank equals cell fraction numerator 1 over denominator cos space 60 degree end fraction plus open parentheses fraction numerator negative cos space 30 degree over denominator negative sin space 30 degree end fraction close parentheses end cell row blank equals cell fraction numerator 1 over denominator begin display style bevelled 1 half end style end fraction plus fraction numerator begin display style bevelled 1 half end style square root of 3 over denominator begin display style bevelled 1 half end style end fraction end cell row blank equals cell 2 plus square root of 3 end cell end table$

Jadi, Nilai dari sec space 300 degree plus cot space 210 degree equals 2 plus square root of 3 .