Hi there,

it would be much appreciated if any one can help me solve this equation

2tan^2x+2sec^2x-secx =12

thanks

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- April 20th 2009, 01:09 AMmasiboysolving the equation
Hi there,

it would be much appreciated if any one can help me solve this equation

**2tan^2x+2sec^2x-secx =12**

thanks - April 20th 2009, 02:03 AMred_dog

Replace , then note and solve the quadratic.

Can you do that? - April 20th 2009, 02:41 AMmasiboy
- April 20th 2009, 03:50 AMmr fantastic
- April 20th 2009, 05:20 AMSoroban
Hello, masiboy!

I'll assume that the answers are on

Quote:

Since , the equation becomes: .

. . which simplifies to: .

. . and factors: .

We have: .

. . and: .