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 :

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

What is true about △ABC? Select three optionsAB ⊥ ACThe triangle is a right triangle. The triangle is an isosceles triangle. The triangle is an equilateral tria

3(2x - 3) = 4(2x + 4)

Can someone help me answer fast

There are 15 men and 21 women in a club. One man and one female are to be selected at random to represent the club. How many different pairs are there?Someone p

16x^2+?x+36 perfect square trinomial

W+15x-9y+2z Terms: Coefficients:

what is meant by afterglow?

Perform the following operation and express the answer in scientific notation. 2.36×10-2 8.4×10²

Set up the Applied Force (force exerted) on both crates with the current Friction setting at 350 N. On Part 2, draw a force diagram that includes all external f

loade Brack Figure below show a circuit diagram of a device for controlling the temperature in a room. Explain how the Iron Heating element S loade Brack Figure