manhn29112005 manhn29112005
  • 03-08-2021
  • Mathematics
contestada

[tex](cos^{2} x-sin^{2}x)^{2} -sin4x+sin^{2}2x=0[/tex]

Respuesta :

Аноним Аноним
  • 03-08-2021

Answer:

x=22.5°

Step-by-step explanation:

(cos²x-sin²x)-sin4x+sin²2x=0

or, (cos2x)²-sin4x+sin²2x=0

or, cos²2x+sin²2x-sin4x=0

or, 1-sin4x=0

or, sin4x=1

or, 4x=90°

or, x=90°/4

or, x=22.5°

Answer Link

Otras preguntas

The smallest difference between two stimuli that enables us to tell the difference between them is called the _____.
How is energy related to the rectants and products of a chemical reaction?
Successful interventions are designed to match physical activity with
The constitutional amendment process was designed to be __________ in order to ________________.​
Hkw do you solve 1/3(6x-9)=7-2x?
If a person wanted to purchase their dream car, and keep it for many years, should they lease or buy? Why? (Site 1)
Why where people dissatisfied with Hinduism
An atom of potassium has 19 protons and 20 neutrons. what is its mass number?
Saul convert 2.392 hectoliters to liters what should his new number be?
A student has some​ $1 and​ $5 bills in his wallet. he has a total of 1919 bills that are worth ​$5959. how many of each type of bill does he​ hav