Trigonometric Ratio Ex.11B - 2

# Trigonometric Ratio Ex.11B - 2 - 8 Find the size of θ in...

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Liu Po Shan Memorial College F.2 Mathematics ( 10 -1 1 ) Worksheet Topic : Trigonometric Ratio Ex.11B - 2 Name : __________________(           ) Class : ____________ Date  __________________            Score : ____________ Chapter 11.1 Introduction to Trigonometric Ratios Let’s Do Some Exercises! 1. Find the value of cosθ 2. Find the value of cosθ 3. Find the value of cosθ

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Give the answers correct to 4 significant figures if necessary. (4-6) 4. Find the value of cos 55˚ 5. Find the value of cos 78˚ 6. Find the value of cos 26˚ 7. Find the size of θ in cosθ= 0.4848 (Give the answers correct to the nearest degree)
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Unformatted text preview: 8. Find the size of θ in cosθ= 0.500 (Give the answers correct to the nearest degree) 9. Find the size of θ in cosθ= 0.8090 (Give the answers correct to the nearest degree) 10. Find the size of θ in cosθ= 0.4226 (Give the answers correct to the nearest degree) 11. Find the value of 2.5 cos 14˚ (Give the answers correct to 3 significant figures if necessary.) 12. Find the value of cos 38˚ + 4 cos 55.3˚ (Give the answers correct to 4 significant figures if necessary.) 13. Find the value of 5cos 20.9˚ + 3cos 58.5˚ (Give the answers correct to 4 significant figures if necessary.)...
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Trigonometric Ratio Ex.11B - 2 - 8 Find the size of θ in...

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