lukey5248 lukey5248
  • 13-09-2018
  • Mathematics
contestada

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

Relax

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

Consider the following pairs of atoms. Place each set in order of increasing bond polarity. Describe the trend. a. Li-F Na-F K-F Rb-F Cs-F b. Mg
What is the terminal velocity of a 6.00-kg mass object in falling with a drag force with a magnitude that depends on speed, v, as Fdrag = (30.0 N·s/m)v?
the bakery has 15 donuts, 5 cupcakes, and 20 cookies in its display case the ratio of cupcakes to donuts
Dolores spent $13.00 of the $20.00 in her wallet which decimal represents the fraction of the $20.00 has spent?
twice the difference of a number and 7 is equal to 2 translate the sentence into an equation.
what capital city is further west, doha, quatar or manama bahrain
What could be a problematic effect of granting States to much power to pass their own laws?
CAN SOMEONE JUST PLEASE ANSWER THIS ASAP FOR BRAINLIEST!! Factor completely. 108 - 3x^2 = ________
Help please!!!!!!!!!!!!!!!!
PLEASE HELP FOR MY GERMAN HOMEWORK