100 Bible Verses Everyone Should Know by Heart

100 Bible Verses Everyone Should Know by Heart

Matematika cos 30×sin 60+cos 30+sin 60​

cos 30×sin 60+cos 30+sin 60​

Jawab:

³/₄ + √3

Penjelasan dengan langkah-langkah:

cos 30°×sin 60° + cos 30° + sin 60°

= ​cos 30°×cos (90° – 60°) + cos 30° + cos (90° – 60°)

= ​cos 30°×cos 30° + cos 30° + cos 30°

= cos 30°(cos 30° + 1 + 1)

= cos 30°(cos 30° + 2)

= ½√3 (½√3 + 2)

= ¼×√3×√3 + ½×2×√3

= ³/₄ + √3

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