**sec**^-1(x)=an angle, for our case, theta, Lets use the unit circle and basic definitions to determine...z Cos = x/z Tan = y/x and using the trigonometric identities Csc = 1/sin**Sec**= 1/cos Cot = 1/tan we get Csc = z/y**Sec**= z/x Cot = x/y So, to answer...5 Answers · Education & Reference · 08/06/2011

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**sec**^2 x) is really (**sec**x)^2. It's the same for cos, sin, tan, cot, and csc too, of...something. Anyway, this means your equation would be: [**sec**(pi/3)]^2 You should already know that**sec**x = 1/cos x ...1 Answers · Education & Reference · 19/09/2012

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**SEC**'s principal objectives are: (1) to ensure that the securities... can make informed investment decisions. The**SEC**pursues these objectives by: mandating that companies...3 Answers · Education & Reference · 19/12/2008

**Sec**(x) = 5**Sec**(x) = 1/cos(x) 1/cos(x) = 5 cos(x) = 1/5 cos(x) = 0.2 x...1 Answers · Education & Reference · 02/11/2011

Let y =

**sec**(x). From the definition: dy/dx = lim(h -> 0) [**sec**(x + h) -**sec**... h -> 0: sin(x) / cos(x)cos(x + h) -> sin(x) / cos^2(x) =**sec**(x) tan(x), and sin(h) / h -> 1. The whole of this part therefore...1 Answers · Education & Reference · 14/10/2007

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**sec**x + csc x)^2= (1+tan x)^2 + ( 1+ cot x)^2 => (**sec**^2x + 2secx cscx + csc^2x) = (1+tan x)^2 + ( 1+ cot x)^2 => ( 1 +t an^2x ) + 2...2 Answers · Education & Reference · 17/10/2010

**SEC**Divisions Homepages Corporation Finance...and Markets --------------------------------------------------------------------------------**SEC**Offices Homepages Office of Acquisitions...1 Answers · Education & Reference · 26/02/2010

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**sec**^2(x+3))'= = 2**sec**(x+3) ***sec**(x+3)' = = 2**sec**(x+3) * [(cos(x+3)^-1]' = = 2**sec**(x+3) * (-1...1 Answers · Education & Reference · 08/02/2012

**sec**θ = 1 / cos θ In quadrant 1 all ratios are positive Now cos θ = sin [(π/2) - θ] so**sec**θ = 1 / sin [(π/2) - θ]1 Answers · Education & Reference · 09/12/2012

g(x) = y =

**sec**(x) dy ⁄ dx =**sec**(x) • tan(x) ... set to zero for min/max 0...be zero. First Term Solution:**sec**(x) = 0 1 ⁄ cos(x) = 0 ... no solution since cos(x) never ...2 Answers · Education & Reference · 22/04/2012