(M2/2-3) Trigonometric Ratios using calculator

Calculate: sin 80°

• 0.9848

• 0.9484

Calculate: sin 80° + tan 80° + cos 80°, then correct to 3 significant figures.

Calculate: tan 6° - sin 4° + cos 12°, then correct to 4 significant figures.

Calculate: cos 36°

• 0.80090

• 0.8090

Calculate: tan 37°

• 0.7365

• 0.7536

Calculate: 4 sin 20°

• 1.386

• 1.368

Calculate: cos 9.8° + 6 cos 34°

• 5.960

• 5.690

Calculate: 2 tan 18.7° + 5 tan 87.6°, then correct to 4 significant figures.

Calculate: 2 sin 85° + 3 cos 17°, then correct to 4 significant figures.

Calculate: 4 tan 50.1° + 3 sin 29.6°, then correct to 4 significant figures.