buktikan bahwa 1. sin^3A/cosA + sinA CosA = tan A 2. cotanA - cos^A = cos^A cotan^2 3. cos^2 (1+tan^2A)=1
Matematika
JulaehaMs
Pertanyaan
buktikan bahwa
1. sin^3A/cosA + sinA CosA = tan A
2. cotanA - cos^A = cos^A cotan^2
3. cos^2 (1+tan^2A)=1
1. sin^3A/cosA + sinA CosA = tan A
2. cotanA - cos^A = cos^A cotan^2
3. cos^2 (1+tan^2A)=1
1 Jawaban
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1. Jawaban marwah91
sin^3A/cosA + sinA.cos^2A/cosA
= sin^2A(sinA)+sinA.cos^2/cosA
=sinA/cosA(sin^2+cos^2)
=TanA(1)
=TAN A