archerests archerests
  • 01-06-2021
  • Mathematics
contestada

Use angle addition formula to find the expression for cos(a+b). Use the same formula to
find cos(a+a).

Respuesta :

msm555
msm555 msm555
  • 01-06-2021

Answer:

we have

Cos (a+b)=Cos aCosb-SinaSinb

for

Cos (a+a)=Cos aCosa-SinaSina=Cos²a-Sin²a

is a required answer.

Answer Link
urmm0000 urmm0000
  • 01-06-2021
What they said!!!!!!!!!!!!
Answer Link

Otras preguntas

PLEASE HELP!Can someone explain this to me? How to find the Function rule? Would it just be "f(x)= ??" ?
What is 2.078 rounded to the hundredths place?
3(x+2) = 4(x+1)Who can help me
If you drop a 2.5kg ball that initially has 32J of potential energy, how much potential energy will it have before it hits the ground? Round your answer to the
Use the fact that the sum of the angles in a triangle is 180° for this question.Two angles of a triangle have the same measure and the third one is 9º greater t
I need help solving this I thought it was 7 but I’m not too sure now
How many cubic feet of warehouse space are needed for 430 boxes 12in by 8in by 9in?
Johnathan weighs 650N on Earth. What would his weight be if he was on Jupiter, which has a gravity of 24.8 m/s^2?
The number of cells in a tumor doubles every 2.5 months. If the tumor begins with a single cell, how many cells will there be after 2 years? after 5 years?Quest
Congenital deafness in humans is due to the homozygous condition of either of the recessive genes d or e, or both of these genes. Both dominant D and E are nece