Anonymous

# Please help?

Advanced function gr12

### 1 Answer

Relevance

- hayharbrLv 71 month ago
cos²Θ = 1 - sin² Θ so make that substitution then simplify.

3(1 - sin² Θ) - 5 sin Θ - 4 = 0

3 - 3 sin² Θ - 5 sin Θ - 4 = 0

0 = 3 sin² Θ + 5 sin Θ + 1

Quadratic formula

- Log in to reply to the answers

Still have questions? Get answers by asking now.