the question says: Use an identity to find solutions on the interval [0,2pi]

sec^2 x + tanx = 3

thanks

Printable View

- November 25th 2007, 01:20 PMkenanusing identity to solve for x
the question says: Use an identity to find solutions on the interval [0,2pi]

sec^2 x + tanx = 3

thanks - November 25th 2007, 02:18 PMSoroban
Hello, kenan!

Quote:

Use an identity to find solutions on the interval

. .

Then we have: .

. . which is a quadratic:] .

. . which factors: .

Then we have:

- November 25th 2007, 02:24 PMkenan
hey thanks for the answer:), but can you show me how you derived

ive never seen that identity before so I'm just curious where it comes from