lynnlynnlynnn lynnlynnlynnn
  • 01-11-2021
  • Mathematics
contestada

Prove 8 sin^3 x cos x = 2 sin 2x - sin 4x​

Prove 8 sin3 x cos x 2 sin 2x sin 4x class=

Respuesta :

lynnkc2000 lynnkc2000
  • 01-11-2021

Answer:

steps below

Step-by-step explanation:

[tex]8sin^{3} x*cos x \\= 4sin^{2} x*2sin x cos x\\= 4sin^{2} x* sin 2x\\ = 2sin 2x*(2sin^{2} x)\\ = 2sin 2x*(1-(1-2sin^{2} x))\\ = 2sin 2x*(1-cos 2x)\\ = 2sin 2x - 2sin2x*cos 2x\\ = 2sin 2x - sin 4x[/tex]

Answer Link

Otras preguntas

{0,1,2,3,4,5,6,20,21,22,23,24,25} the distribution is considered to be: skewed the right, skewed the left, not skewed?
Write A fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer ASAP!!!!!!!
Which is the correct verb form to tell your sister to set the table
Please need help on this
what is 1/3x5 on anuber line what does it look like on a number line
what is the purpose of the system of checks and balances
Why was Charliemagne hesitant about being crounded Holy Roman Emperor?
Solve the problem. A student earned grades of C, A, B, and A in four different courses. Those courses had these corresponding numbers of credit hours: 4, 5, 1
Determine the amount of work done when a crane lifts a 100-N block form 2m above the ground to 6m above the ground
last one and the bottom answer choice is Y=(x-4)^2+1 Thank you guys!