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The COS function returns the cosine of an angle provided in radians. In geometric terms, the cosine of an angle returns the ratio of a right triangle's adjacent side over its hypotenuse. For example, the cosine of PI ()/6 radians (30°) returns the ratio 0.866. = COS (PI () / 6) // Returns 0.886.
Calculate cos(pi/6) cos is found using Adjacent/Hypotenuse. Determine quadrant: Since 0 ≤ 0 ≤ π/2 radians it is in Quadrant I. sin, cos and tan are positive. Determine angle type: 0 90°, so it is acute. cos(π/6) = √ 3 /2. Excel or Google Sheets formula: Excel or Google Sheets formula:=COS(PI()/6) Special Angle Values
With Excel, this conversion can be written PI ( )/180. For example, to convert 45° to radians, the Excel expression would be 45*PI ( )/180 which equals 0.7854 radians. Excel has a built-in function known as RADIANS (angle) where angle is the angle in degrees you wish to convert to radians.
This article describes the formula syntax and usage of the COS function in Microsoft Excel. Description. Returns the cosine of the given angle. Syntax. COS(number) The COS function syntax has the following arguments: Number Required. The angle in radians for which you want the cosine.
You could also use =SIN(PI()/180*B5) if you prefer to use the formula on the previous page. Repeat for the cosine and tangent functions: =COS(RADIANS(B5)) and =TAN(RADIANS(B5)) , respectively. Highlight the three cells and double-click the fill handle .
x^{2}-x-6=0 -x+3\gt 2x+1 ; line\:(1,\:2),\:(3,\:1) f(x)=x^3 ; prove\:\tan^2(x)-\sin^2(x)=\tan^2(x)\sin^2(x) \frac{d}{dx}(\frac{3x+9}{2-x}) (\sin^2(\theta))' \sin(120)
5 dni temu · COS (number) Returns the cosine of a number. number. The number you want the cosine of. REMARKS. * For an illustrated example refer to the Trigonometric Functions page. * The inverse of this function is the ACOS function. * The cosine of a number is 1/ SEC.
