lukey5248 lukey5248
  • 13-09-2018
  • Mathematics
contestada

By using sum or difference formulas, cos(π−x) can be written as

Respuesta :

crisforp
crisforp crisforp
  • 13-09-2018

We have cos( x - y ) = cosxcoy + sinxsiny <=> cos ( π - x ) = cosπcosx + sinπsinx <=> cos ( π - x ) = (-1)cosx + 0sinx = -cosx;

Answer Link

Otras preguntas

Using the side-splitter theorem, Daniel wrote a proportion for the segments formed by line segment DE. What is EC? 2 units 2.4 units 3 units 3.75 units
What is the slope of the line that contains the points (-1, -1) and (3, 15)? A. 4 B. 1/4 C. -4 D. -1/4
What three things should study groups do to ensure they are productive?
how is using deductive reasoning helpful?
Which type of vaccine involves stimulation of b cells without the assistance of t helper cells?
what is 51.95 rounded to the nearest cent?
explain how a person can be employed and still be living under the poverty threshold
Es la comida más importante del día. son los más ricos de toda la ciudad. porque es el menos caro de los pescados del menú. , el camarero me ofreció la peor mes
What are the domain, range, and asymptote of h(x) = (1.4)x + 5?
What process modifies light waves to vibrate in a single plane