how can i solve this equation 2cot^2(2x)+3cosec2x=0 for o<x<π??(Wondering)

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- February 21st 2013, 08:09 AMendriTrigonometric equation
how can i solve this equation 2cot^2(2x)+3cosec2x=0 for o<x<π??(Wondering)

- February 21st 2013, 09:34 AMMINOANMANRe: Trigonometric equation
Endri

Substitute cot(2x) by cosx/sinx and cosec2x by 1/sin2x and do some work to get a quadratic then solve it it is easy.

good luck - February 21st 2013, 09:47 AMSorobanRe: Trigonometric equation
Hello, endri!

Quote:

We have: .

. . . .

. . . . .

. . . . .

. . . .

Then: .

- February 21st 2013, 10:40 AMMINOANMANRe: Trigonometric equation
I strongly believe that we should guide the readers to do some work by themselves and study more rather than solve them their homework.

MINOAS - February 21st 2013, 11:13 AMendriRe: Trigonometric equation
THANK YOU VERY MUCH MAN(Nod)

- February 21st 2013, 11:20 AMendriRe: Trigonometric equation
cosec^2(x)=1+cot^2(x),,and i wasnt sure if it was right to say that cosec^2(2x)=1+cot^2(2x)... thanks again man

- February 21st 2013, 11:27 AMendriRe: Trigonometric equation
minoanaman thanks for your help too man.. i had solved this equation,but i was not sure if the method that soroban showed me was right