Jika tan 3∘=p, nyatakan soal-soal berikut ini dalam p! a. tan 27∘

Pertanyaan

Jika $\style{font-size:14px}{\tan\;3^\circ=p}$ , nyatakan soal-soal berikut ini dalam $\style{font-size:14px}p$ !

a. $\style{font-size:14px}{\tan\;27^\circ}$

F. Kartikasari

Master Teacher

Mahasiswa/Alumni Universitas Negeri Surabaya

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Pembahasan

$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell tan space 27 degree end cell equals cell tan space open parentheses 30 minus 3 close parentheses degree end cell row blank equals cell fraction numerator tan space 30 degree minus tan space 3 degree over denominator 1 plus tan space 30 degree times tan space 3 degree end fraction end cell row blank equals cell fraction numerator begin display style 1 third end style square root of 3 minus p over denominator 1 plus open parentheses begin display style 1 third end style square root of 3 times p close parentheses end fraction end cell row blank equals cell fraction numerator begin display style 1 third end style square root of 3 minus p over denominator 1 plus begin display style fraction numerator p square root of 3 over denominator 3 end fraction end style end fraction end cell end table end style$

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