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

How long did trapper gathering last
A certain fan is capable of using 4800J of electrical energy each minute, converting 4000J of it into kinetic energy of the fan. What is the efficiency of this
How do you think a number of contractile vacuole contraction will change when the water solute concentration is reduced
what are the things that encourage people to immitate?what are the things that encourage people to imitate ​
Patty sells pies to customers at a price of $16 per pie. She starts the day with $90 in her cash register. How many pies does Patty need to sell to get $538 in
What time will it be 53 hours after 3:30 pm on thursday?
RA 1425 Rizal Law what does the law mandate us to do?
She received ____ Country A dollars.
Which literary theme do Rikki-tikki's actions illustrate?
An early conflict between English colonists and American Indians.