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

Solve this equation for x x-2y=8
Which resource will best help a student understand the origin of the word atlas? a. a thesaurus b. a geography book c. a dictionary d. a mythology book
People with type o-negative blood are referred to as universal donors, although if you give type o-negative blood to any patient you run the risk of a transfusi
Jill and Mary are selling cheesecakes for a school fundraiser. Customers can buy pecan cheesecakes and apple cheesecakes. Jill sold 6 pecan cheesecakes and 14 a
the two assemblies that made up the roman senate were
why do you suppose this section struck such a deep chord
Ground water is becoming: depleted and warmer polluted and radioactive polluted and depleted increased and salty
How does gravitational energy change from sea level to an elevated height?
explain how algebra tiles represent like terms and zero pairs
The number of portable CD players you are prepared to supply to a retail outlet every week is given by the formula q = 0.3p2 + 6p where p is the price it offers