Sunday

March 29, 2015

March 29, 2015

Posted by **Veronica** on Thursday, March 24, 2011 at 1:35pm.

- Trigonometry -
**Reiny**, Thursday, March 24, 2011 at 1:42pmsin^2 Ø = 1 - cos^ Ø

so replace that in the original to get

1 - cos^2Ø + cosØ - 2 = 0

cos^2Ø - cosØ + 1 = 0

It does not factor , so by the quadratic formula

cosØ = (1 ± √-3)/2

since the right side is a complex number there will be no solution for Ø

**Answer this Question**

**Related Questions**

Calculus - I wanted to confirm that I solved these problems correctly (we had to...

math - I have a question I have been working on since yesterday and I am not ...

precalc pre ap - If theta is a rotation angle that terminates in quadrant ll and...

Maths- complex numbers - Find tan(3 theta) in terms of tan theta Use the formula...

trigonometry - can you correct the rest for me please? Express each as a ...

trigonometry - can you correct the rest for me please? Express each as a ...

math(Trigonometry) - sin 2 theta + cos theta = 0 so, we use sin 2 theta = 2 sin ...

Physics - An object is shot at 20m/s at an angle theta. The object lands 24m ...

trigonometry - I need help in understanding how to identify which identity to ...

Precalculus 2 - Similiarly to a question I asked previously I took the same ...