Assesmen Awal Trigonometri Quiz

Hitung nilai sin(30°)

• 1.0

• 0.5

• 0.7

• 0.3

Hitung nilai cos(60°)

• 0.3

• 1.2

• 0.7

• 0.5

Hitung nilai tan(45°)

• 2

• 3

• 1

• 0.5

Selesaikan persamaan trigonometri: sin(x) = 0.5

• x = π/2 + 2πn or x = 3π/2 + 2πn

• x = π/6 + 2πn or x = 5π/6 + 2πn

• x = π/4 + 2πn or x = 3π/4 + 2πn

• x = π/3 + 2πn or x = 4π/3 + 2πn

Selesaikan persamaan trigonometri: cos(2x) = -0.5

• x = π/4 + 2πn, x = 3π/4 + 2πn

• x = 2π/3 + 2πn, x = 4π/3 + 2πn

• x = 0, x = π

• x = π/3 + 2πn, x = 5π/3 + 2πn

Selesaikan persamaan trigonometri: tan(x) = √3

• x = 5π/6 + nπ

• x = 3π/4 + nπ

• x = 2π/3 + nπ

• x = π/3 + nπ

Gunakan identitas trigonometri untuk menyederhanakan sin(2x)

• cos(2x)

• 2sin(x)

• 2sin(x)cos(x)

• sin(x)cos(x)

Gunakan identitas trigonometri untuk menyederhanakan cos(180° - x)

• sin(x)

• tan(x)

• -cos(x)

• cos(x)

Gunakan identitas trigonometri untuk menyederhanakan tan(x + π)

• -cot(x)

• tan(x)

• -tan(x)

• cot(x)

Hitung nilai sin(-45°)

• 0.7071

• -0.7071

• -1.5708

• 1.4142