convert 12°f to celsius. solution: given: 12°f the fahrenheit to celsius formula is °c = [(°f-32)×5]/9 substituting the values in the formula, we get °c = [(12-32)×5]/9 °c = (-20 ×5)/9 °c = -100/9 °c = -11. 1 hence, 12°f = -11.1°c. example...
sin(A + B) = sinAcosB+ sinBcosAcos(A + B) = cosAcosB- sinAsinBWe know that tan(x) =and that the same relationship is true for the doubleangle/ additional formula.[ mark ]Thus, we can write[1 mark]If we divide each term by we get the followingCancelling out the left- hand...
Reciprocal Trigonometric Ratios: The reciprocal trigonometric ratios are derived from the primary trigonometric ratios and relate the angles of a right triangle to the lengths of its sides: Cosecant (cosec)-> cosecθ = 1/sinθ Secant (sec)-> secθ = 1/cosθ Cotangent (cot)-> cotθ = ...
Degree RangeQuadrantCos Function SignCos Value Range 0°to 90°1st Quadrant+ (Positive)0 < cos(x) < 1 90° to 180°2nd Quadrant– (Negative)-1 < cos(x) < 0 180° to 270°3rd Quadrant– (Negative)-1 < cos(x) < 0 270° to 360°4th Quadrant+ (Positive)0 < cos(x) <1 ...
tan 2y = 2 tan y/{1-tan^(2) y}. What is sin 2x double angle? The double angle formula is used to calculate sin 2x, cos 2x, tan 2x, for any given angle 'x'. The sine double angle formula for an angle 'x' is sin 2x = 2sin(x)cos(x).What...
cos x = 1/sec x sec x = 1/cos x tan x = 1/cot x cot x = 1/tan x What is sin 2x identity? sin 2x = 2sin(x)cos(x) The sin 2x identity is a double angle identity. It can be used to derive other identities.Trig...
Answer to: Use a double-angle formula to rewrite the expression. (cos x + sin x)(cos x - sin x) By signing up, you'll get thousands of step-by-step...
Answer to: Use a sum-to-product formula to rewrite cos5w + cos2w as a product. By signing up, you'll get thousands of step-by-step solutions to...
cos x= (e^(ix)+e^(-ix))2 sin x= (e^(ix)-e^(-ix))(2i) 相关知识点: 试题来源: 解析 Using Formula 6,e^(ix)+e^(-ix)=(cos x+isin x)+[cos (-x)+isin (-x)]=cos x+isin x+cos x-isin x=2cos xThus, cos x= (e^(ix)+e^(-ix))2. Similarly, e^(ix)-e^(-...
This line begins aWitha block that allows us to access built-in worksheet functions using theWorksheetFunctionobject. P=Cos(.Radians(90-Latitude1))Q=Cos(.Radians(90-Latitude2))R=Sin(.Radians(90-Latitude1))S=Sin(.Radians(90-Latitude2))T=Cos(.Radians(Longitude1-Longitude2)) ...