WebDec 18, 2024 · Let the coordinates of be (-a, -b) , then its reflection in the first quadrant is the angle (45°) with coordinates (a, b). We know that , thus the coordinates (-a, -b) which are the cosine and sine of respectively, are: . From the identity tan (x)=sin (x)/cos (x), we easily see that the tangent is 1. Answer: . Advertisement Advertisement WebThe degrees cancel out. So you have a 45 over 180. This goes four times. So this is equal to-- you have the minus sign-- minus pi over 4 radians. So the arctangent of minus 1 is equal to minus pi over 4 or the inverse tangent of minus 1 is also equal to minus pi over 4. Now you could say, look. If I'm at minus pi over 4, that's there. That's fine.
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WebJan 16, 2012 · Best Answer. Copy. tangent of pi/4 = 1. Wiki User. ∙ 2012-01-16 00:46:42. This answer is: WebAt that point, Sal is dealing with pi/4 or 45 degrees, which is an angle that you can know sin, cos, and tan values without having to calculate anything. 45 degrees is one of those "special" angles that it would be good to memorize or at least know how to very easily find its sin/cos/tan value without a calculator. how to use babe lash
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WebThe value of cot pi/4 is 1. Cot pi/4 can also be expressed using the equivalent of the given angle (pi/4) in degrees (45°). We know, using radian to degree conversion, θ in degrees = θ in radians × (180°/ pi) ⇒ pi/4 radians = pi/4 × (180°/pi) = 45° or 45 degrees ∴ cot pi/4 = cot π/4 = cot (45°) = 1 Explanation: WebJan 16, 2012 · Assuming you want exact values for sin, cos, and tan.240 degrees is equal to 4 [Pi]/3 radians.cos (4 [Pi]/3) and sin (4 [Pi]/3) are easy to find using the unit circle,cos (4 … WebEvaluate cot(pi/4) Mathway Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. Enter a problem... Calculus Examples Popular Problems Calculus Evaluate cot(pi/4) The exact value of is . Cookies & Privacy how to use babel with webpack