Tutor profile: Gaurav K.
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Gaurav K.
Mathematics Educator and Technologist
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Questions
Subject: PreCalculus
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Question:

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Gaurav K.
Answer:

Subject: Trigonometry
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Question:
what is the cosine of 370°
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Gaurav K.
Answer:
370° is greater than 360° so let us subtract 360° 370° − 360° = 10° cos(370°) = cos(10°) = 0.985 (to 3 decimal places)
Subject: PreAlgebra
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Question:
what is √10?
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Gaurav K.
Answer:
Let's try 3.5: 3.5 × 3.5 = 12.25 Let's try 3.2: 3.2 × 3.2 = 10.24 Let's try 3.1: 3.1 × 3.1 = 9.61 ... Getting closer to 10, but it will take a long time to get a good answer! calculator At this point, I get out my calculator and it says: 3.1622776601683793319988935444327 But the digits just go on and on, without any pattern. So even the calculator's answer is only an approximation!
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