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

just explain how it's not 7 please ​
The two lower chambers of the heart are the ________. 1) ventricles 2) atria 3) aortas 4) valves
Abigail was delivered by emergency caesarean section at only 25 weeks gestation. She was taken to the neonatal intensive care unit (NICU) where she was fed intr
Jin met Pat on September 8 at Queen Bank. After talking with Pat, Jin decided she would like to consider a $9,000 loan at 1012% to be repaid on February 17 of t
-6+4x= -9 solve the following equation
What is the history of cough syrup
pqr is an isosceles triangle in which pq=pr m and n are points on pq and pr
State the name of the reaction for the traditional making of lime?
Jane is 15 years older than Ganesh. She is four times as old as ganesh. Find their present ages
in the figure below PQRS is a parallelogram. Find the values of x y and z.​