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

LACH PROBLEM1. Consider the following reaction: 2Al + 6HBr → 2AlBr3 + 3H2 a. When 4.63 moles of Al reacts with 7.82 moles of HBr, how many moles of H2

What weather would create the smallest waves?

please help 1. the building and use of observation allowed Maya to developA. complex calendarB. hieroglyphic writingC. slash and burn argiculture D. stone prima

What is one way that Southerners attempted to protect their ports

How can one be happy? How can one go into every day and actually be ok? Not tell themselves that they are ok with the faint hope of convincing themselves that t

help me with english please

Please help me just say your answers in the comments please

Asking a job candidate his or her marital status is Question 11 options: A.acceptable under certain circumstances. B.illegal. C.commonplace. D.unavoidable.

In the poem "The Road Not Taken," the author uses a specific word choice to create the emotion in the poem.

Which action gave President Lyndon B. Johnson to increase ground troops in Vietnam which futher escalted the conflict in 1964? Gulf of Tonkin Resolution Cea