Posted by **Lucia** on Tuesday, May 31, 2011 at 1:14pm.

How can I prove this identity?

(1 + sinØ + cosØ):(1 - sinØ + cosØ) =

(1 + sinØ) : cosØ

## Answer This Question

## Related Questions

- trig - how do you solve this problem? 1+sinØ/cosØ +cosØ/1+sinØ = 2secØ and cos...
- Algebra 2 - As the answer to: (tanØ * cosØ/ sinØ) + cotØ * sinØ * tanØ* cscØ I ...
- maths - if sinØ=cosØ then find the value of Ø
- Trig - Prove the following: 1/(tanØ - secØ ) + 1/(tanØ + secØ) = -2tanØ (1 - sin...
- math - Two sides of a triangle have lengths 8 m and 24 m. The angle between them...
- Algebra 2 - Verify the identity , justify each step tanØ+cotØ = 1/ sin Ø cosØ
- Advanced Functions/Precalculus - 1. The expression sinπ is equal to 0, ...
- math - if cosØ=0.6 and 0°<Ø<90°, find the exact value of 2Ø
- math - if Ø is an angle in the first quadrant and cosØ= 1/2, find the exact ...
- Topology - Find the Cartesian form of the equation, r3 = 3r cosØ.

More Related Questions