Question

evaluate cos39° + sin9°


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Answer 1

• The value of cos 39° is equal to the x-coordinate (0.7771). ∴ cos 39° = 0.7771.
• Sin 9 degrees is the value of sine trigonometric function for an angle equal to 9 degrees. The value of sin 9° is 0.1564 (approx).

then

• cos39° + sin9°
• 0.7771+0.1564
• 0.9335

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Answer 2

Answer:

Step-by-step explanation:

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