Matematika Sekolah Menengah Atas tolong bantu jawab Kaka ​

nestorgleasonulv – April 20, 2023

tolong bantu jawab Kaka ​

Jawaban:

1 + cos (2x/2) cos x

= 1 + cos x • cos x

= 1 + cos² x

= 1 + (1 - sin²x)

= 2 - sin²x

substitusi nilai limit

limit = 2 - (sin 90°)²

= 1

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