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Question
Evaluate: 14 sin 30°+ 6 cos 60°- 5 tan 45°.
Sum
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Solution
14 sin 30°+ 6 cos 60°- 5 tan 45°
= `14(1/2) + 6(1/2) - 5(1)`
= 7 + 3 - 5
= 5.
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Chapter 21: Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals] - EXERCISE 21 (F) [Page 334]
