Berapa secan kuadrat 45??

Bab Trigonometri
Matematika SMA Kelas X

sec² 45°
= (1/cos 45°)²
= (1 : 1/√2)²
= (√2)²
= 2

Cos 45 = 1 / v2
sec 45 = 1 / cos 45 = 1 / (1 / v2) = v2

sec^ 45 = sec 45 x sec 45 = v2 x v2 = 2

Mohon maaf jika salah
Semoga membantu