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

1. The report tomorrow (finish).​
I went shopping for a new car. the suggested manufacturers price is $26,985. With discounts for first time car buyer, being a college graduate, and the Labor Da
Evaluate the expression 8 x 1. 5
1. The report tomorrow (finish).​
Joe and Ann buy some fruit from the same shop. Joe buys 4 apples and 3 bananas for £2.50 Ann buys 3 apples and 4 bananas for £2.40 Work out the cost of (i) one
anyyyy girrllll online hereeeere m soo bored​
Although most predicted Phillip to ______ his father, he surprised them by reversing several of his fathers more malevolent policies. dislike resemble influence
Graph: f(x) = -√x Step 1: Evaluate the function to find three points. f(0) = -1 0 1 -2 2 1 -2 9 y 2 6 x x y
anyyyy girrllll online hereeeere m soo bored​
Plot A(2,3) and B(2,5). What is the midpoint of points A and B?