Buktikan tan^2x dikali csc^2x= sec^2x
Matematika
nuralisafidya
Pertanyaan
Buktikan tan^2x dikali csc^2x= sec^2x
1 Jawaban
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1. Jawaban ahreumlim
sec x = 1/cos x
tan x = sin x / cos x
csc x = 1/ sin x
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tan²x . csc²x
= sin²x / cos²x . 1/sin²x
= 1/cos²x
= sec²x (terbukti)