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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

kaylala
 2 years 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
 2 years ago
Best ResponseYou've already chosen the best response.3http://en.wikipedia.org/wiki/File:Unit_circle_angles_color.svg

kaylala
 2 years 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
 2 years 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
 2 years 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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