Pertanyaan

cot 105° tan 75° = ....

cot105° tan75° = ....

1
0
-1

Ikuti Tryout SNBT & Menangkan E-Wallet 100rb

Habis dalam

Klaim

D. Kamilia

Master Teacher

Mahasiswa/Alumni Universitas Negeri Malang

Jawaban terverifikasi

Pembahasan

Perhatikan bahwa

$begin mathsize 12px style table attributes columnalign right center left columnspacing 0px end attributes row cell cot invisible function application 105 degree tan invisible function application 75 degree end cell equals cell fraction numerator cos invisible function application 105 degree over denominator sin invisible function application 105 degree end fraction times fraction numerator sin invisible function application 75 degree over denominator cos invisible function application 75 degree end fraction end cell row blank equals cell fraction numerator cos invisible function application 105 degree times sin invisible function application 75 degree over denominator sin invisible function application 105 degree times cos invisible function application 75 degree end fraction end cell row blank equals cell fraction numerator 1 half open parentheses sin invisible function application open parentheses 105 degree plus 75 degree close parentheses minus sin invisible function application open parentheses 105 degree minus 75 degree close parentheses close parentheses over denominator 1 half open parentheses sin invisible function application open parentheses 105 degree plus 75 degree close parentheses plus sin invisible function application open parentheses 105 degree minus 75 degree close parentheses close parentheses end fraction end cell row blank equals cell fraction numerator sin invisible function application open parentheses 105 degree plus 75 degree close parentheses minus sin invisible function application open parentheses 105 degree minus 75 degree close parentheses over denominator sin invisible function application open parentheses 105 degree plus 75 degree close parentheses plus sin invisible function application open parentheses 105 degree minus 75 degree close parentheses end fraction end cell row blank equals cell fraction numerator sin invisible function application 180 degree minus sin invisible function application 30 degree over denominator sin invisible function application 180 degree plus sin invisible function application 30 degree end fraction end cell row blank equals cell fraction numerator 0 minus 1 half over denominator 0 plus 1 half end fraction end cell row blank equals cell fraction numerator negative 1 half over denominator 1 half end fraction end cell row blank equals cell negative 1 end cell end table end style$