Matematika Sekolah Menengah Atas buktikan cos^2 A (1+tan^2 A) =1​

willakeeblerulv – May 11, 2023

buktikan cos^2 A (1+tan^2 A) =1​

Jawaban:

Cos²A . (1+Tan²A) = 1

= Cos²A + Cos²A.Tan²A

= Cos²A + Cos²A.Sin²A/Cos²A

= Cos²A + Sin²A

= 1

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