cos² x (1 + tan² x) = 1
Matematika
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Pertanyaan
cos² x (1 + tan² x) = 1
2 Jawaban
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1. Jawaban 18Navillera
cos² x (1 + tan² x) = 1
cos² x . sec² x = 1
cos² x . 1/cos² x = 1
1 = 1 -
2. Jawaban silucu37
Cos2x(1+tan2x)=1
Bukti :
Ruas kiri
Cos2x(1+tan2x)
Cos2x+cos2xtan2x
Cos2x+cos2x dikali sin2x/cos2x
Cos2x+sin2x =1
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