Pagina Procesada y Actualizada en: 0.045 Segs
Double Angle Formulas Help
Ask by - en mathematics |
The last one.
Only that one is an extension of tan(A + B) = (tan A + tan B)/(1 - tan A* tan B)
where A. = x1 and B is (x2 + x3)
The second option gets the signs wrong.
The other two are plain wrong.
Answer by -