Question

Nilai dari 〖Cos〗^2 〖30〗^° + 2 Cos 〖60〗^0 + 〖Sin〗^2 〖30〗^° adalah..

Answer 1

Cos² 30° + 2 cos 60° + sin² 30°
= (1/2 √3)² + 2 (1/2) + (1/2)²
= 3/4 + 1 + 1/4
= 4/4 + 1
= 1 + 1
= 2

semoga membantu ya :)