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kaylala
 one year ago
Trigonometric Equation
2tan^2A + 3secA = 0
kaylala
 one year ago
Trigonometric Equation 2tan^2A + 3secA = 0

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kaylala
 one year ago
Best ResponseYou've already chosen the best response.1@hartnn Another one please

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3which pythagorean identities do you know ?

kaylala
 one year ago
Best ResponseYou've already chosen the best response.1I've bee through all except for the half identities

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3so which identity relates tan^2 A and sec^2 A ?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3ever sen this ? \(\\tan^2 A =sec^2A1\) ? use it here

kaylala
 one year ago
Best ResponseYou've already chosen the best response.1Yes. I'm familiar with that Wait. Let me try

kaylala
 one year ago
Best ResponseYou've already chosen the best response.1I got 2x^2+3x2 Is it right? So i may move on

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3yes, that = 0 remember its an equation, not an expression

kaylala
 one year ago
Best ResponseYou've already chosen the best response.1How'll this be nothing will equal to 3x?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3what ? i didn't get your question...

hartnn
 one year ago
Best ResponseYou've already chosen the best response.32x^2+3x2 = 0 x= ..... x=....

kaylala
 one year ago
Best ResponseYou've already chosen the best response.1Oh sorry What i meant was what should i do next? How do i find x? I cant use the FOIL method.

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3factor method. 2 numbers with sum = +3 and product = 4

kaylala
 one year ago
Best ResponseYou've already chosen the best response.1Sec = 1/2 Sec={no solution Sec=2 No solution ????? I dont know Hpw's this? @hartnn

kaylala
 one year ago
Best ResponseYou've already chosen the best response.1I dont see any negative 2 in the graph list Sec A =2

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3sec A = 2 secA = 1/cos A cos A = 1/2 when ?

kaylala
 one year ago
Best ResponseYou've already chosen the best response.1I dont see any cos A =1/2 There is only cos A=1/2

kaylala
 one year ago
Best ResponseYou've already chosen the best response.1Or did i get it wrong?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3how about angles 120 and 210 ?

kaylala
 one year ago
Best ResponseYou've already chosen the best response.1Where did you get that. Those arent in the graph that was given to us

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3http://en.wikipedia.org/wiki/File:Unit_circle_angles_color.svg

kaylala
 one year ago
Best ResponseYou've already chosen the best response.1Oh i see now So will the answer for secA=2 or cosA=1/2 be: A={120,210}

kaylala
 one year ago
Best ResponseYou've already chosen the best response.1Is that it already? How about sec=1/2? Does it really have no solution? @hartnn

hartnn
 one year ago
Best ResponseYou've already chosen the best response.3yes. in the range 0 to 360. range of sec function does not include values between 1 and 1 so, sec A = 1/2 will have no solution, (in the same way cos A = 2 have no solution)
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