Jawab:
Penjelasan dengan langkah-langkah:
trigonometri
identitas
__
soL
sin² x + sin² x . tan² x =
= sin² x ( 1 + tan² x)
= sin² x ( 1 + sin² x/cos² x)
= sin² x { cos² x + sin² x}/ cos² x
= sin²x/cos²x ( 1 )
= tan² x
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Jawab:
Penjelasan dengan langkah-langkah:
trigonometri
identitas
__
soL
sin² x + sin² x . tan² x =
= sin² x ( 1 + tan² x)
= sin² x ( 1 + sin² x/cos² x)
= sin² x { cos² x + sin² x}/ cos² x
= sin²x/cos²x ( 1 )
= tan² x