buktikan :sina +cota.cosa =csca
Matematika
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Pertanyaan
buktikan :sina +cota.cosa =csca
1 Jawaban
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1. Jawaban rifkyrd
sin(a) + cos(a)/tan(a)
sin(a) + cos(a)*cos(a)/sin(a)
sin(a)*sin(a)/sin(a) + cos(a)*cos(a)/sin(a)
[sin^2(a)+cos^2(a)]/sin(a)
1/sin(a) = csc(a)