Nilai cos 45° – 2 sin 45°

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Nilai cos 45° – 2 sin 45°

Jawaban Terkonfirmasi

Cos 45° = ½√2
sin 45° = ½√2
maka
cos 45°-2sin45°
= (½√2)-(2)(½√2)
=½√2-2/2√2
= -½√2

Jawaban Terkonfirmasi

Cos 45 – 2 sin 45
= 1/2akar 2 – 2. 1/2akar 2
= – akar2/2