Cos of -150
WebJul 12, 2024 · Use it to find cos(150 ∘) and sin(150 ∘). Solution 150 degrees is located in the second quadrant. It is 30 degrees short of the horizontal axis at 180 degrees, so the reference angle is 30 degrees. This tells us that 150 degrees has the same sine and cosine values as 30 degrees, except for sign. We know that sin(30 ∘) = 1 2 and cos(30 ∘) = √3 2. WebTrigonometry Examples Popular Problems Trigonometry cos (150) cos ( 150) To convert degrees to radians, multiply by π 180° π 180 °, since a full circle is 360° 360 ° or 2π 2 π radians. Apply the reference angle by finding the angle with …
Cos of -150
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WebExplanation: For cos 30 degrees, the angle 30° lies between 0° and 90° (First Quadrant ). Since cosine function is positive in the first quadrant, thus cos 30° value = √3/2 or 0.8660254. . . ⇒ cos 30° = cos 390° = cos 750°, and so on. Note: Since, cosine is an even function, the value of cos (-30°) = cos (30°). WebStep 1: Compute the exact value of cos 150 °: Since, 150 ° = 180 °-30 ° So we can write cos 150 ° as. cos 150 ° = cos 180 °-30 ° =-cos 30 ° ∵ cos (180-θ) =-cos θ =-3 2 ∵ cos …
WebFind the exact values of cos 150 ° and sin 150 °. Solution Step 1: Compute the exact value of cos 150 °: Since, 150 ° = 180 ° - 30 ° So we can write cos 150 ° as cos 150 ° = cos 180 ° - 30 ° = - cos 30 ° ∵ cos ( 180 - θ) = - cos θ = - 3 2 ∵ cos 30 ° = 3 2 Step 2: Compute the exact value of sin 150 °: We can find the value as WebQuestion. Please Answer both questions. Thank you! Transcribed Image Text: Simplify without a calculator: cos (210°) tan (-30°) sin (150°) cos (-320°) sin (210) tan (-210°) sin …
WebTo find the exact values of cos 150° and sin 150°, we will use the trigonometric identity cos (180° - Θ) and sin (180° - Θ). Answer: The exact value of cos (150 ∘) is −√3/2 and sin … WebCalculate cos(150)° Determine quadrant: Since 90 180 degrees it is located in Quadrant II sin is positive. Determine angle type: 150 > 90°, so it is obtuse cos(150) = -√ 3 /2 Excel …
WebTrigonometry. Trigonometry (from Ancient Greek τρίγωνον (trígōnon) 'triangle', and μέτρον (métron) 'measure') is a branch of mathematics concerned with relationships …
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