Buktikan bahwa: Sin^3x . Cos^2x = sin^3x - sin^5x
Matematika
putrindhira
Pertanyaan
Buktikan bahwa:
Sin^3x . Cos^2x = sin^3x - sin^5x
Sin^3x . Cos^2x = sin^3x - sin^5x
2 Jawaban
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1. Jawaban rizkafauziah
sin^3x . cos^2x = sin^3x - sin^5x
sin^3x . cos^2x = sin^3x (1 - sin^2x)
sin^3x . cos^2x = 1 - sin^2x
sin^3x
cos^2x = cos^2x (terbukti) -
2. Jawaban novapratiwi19
aku hanya betulin jawaban yg diatas
sin^3x . cos^2x = sin^3x - sin^5x
sin^3x .(1 - sin^2x) = sin^3x (1 - sin^2x)
sin^3x .(1 - sin^2x) = 1 - sin^2x
sin^3x
cos^2x = cos^2x