posie43
posie43 posie43
  • 18-08-2019
  • Mathematics
contestada

Please help with this question

Please help with this question class=

Respuesta :

jimrgrant1 jimrgrant1
  • 18-08-2019

Answer:

C

Step-by-step explanation:

The difference formula for cosine is

cos(x - y) = cosxcosy + sinxsiny

Consider

cos75 = cos(120 - 45)°, then

cos(120 - 45)°

= cos120°cos45° + sin120°sin45° → C

Answer Link

Otras preguntas

if n is a positive integer, for what values of n is the function f(x) =x to the power of na) evenb) odd
Compare Ponyboy and Cherry Valance
Give Reason:- 1)Vegetables release water after salt is added to them 2) Nucleus is absent in red blood cells 3) The skin of your fingers shrinks when you wash
what is the KE of a 1 kg ball traveling at 20 meters per second?
How many legs do ladybugs have?
Genetic engineering is used in the biotechnology industry to? (1) eliminate all infections in livestock (2) synthesize hormones such as insulin and human growt
what is the KE of a 1 kg ball traveling at 20 meters per second?
Wade can paint a certain room in 7 hours. Rhonda can paint the same room in 5 hours. How long will it take them working together to paint the room? Round your a
Compare Ponyboy and Cherry Valance
If p+q+r = 1 and pq+qr+pr = -1, and pqr = -1, find the value of [tex] p^{3}+ q^{3}+ r^{3} [/tex]