Pertanyaan

Trigonometri 1 − cos 2 x 1 + cos 2 x senilai dengan …

Trigonometri $\frac{1 + cos 2 x}{1 - cos 2 x}$ senilai dengan …

tan⁡ x
cot⁡ x
tan⁡x
cot⁡x
cos⁡x

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Klaim

D. Kamilia

Master Teacher

Mahasiswa/Alumni Universitas Negeri Malang

Jawaban terverifikasi

Pembahasan

Ingat rumus dan , maka :

$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator 1 plus cos invisible function application 2 x over denominator 1 minus cos invisible function application 2 x end fraction end cell equals cell fraction numerator 1 plus 2 cos squared invisible function application x minus 1 over denominator 1 minus open parentheses 1 minus 2 sin squared invisible function application x close parentheses end fraction end cell row blank equals cell fraction numerator 2 cos squared invisible function application x over denominator 2 sin squared invisible function application x end fraction end cell row blank equals cell fraction numerator cos squared invisible function application x over denominator sin squared invisible function application x end fraction end cell row blank equals cell open parentheses fraction numerator cos invisible function application x over denominator sin invisible function application x end fraction close parentheses squared end cell row blank equals cell cot squared invisible function application x end cell end table end style$