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

if you pay a cashier 20n dollars how much do you get back?
If Triangle ABC = Triangle PQR then AB =
How much did the state of florida reportedly spend to administer justice to serial murderer ted bundy in 1989?
What is -4x+7=11 with the work and the answer
What’s 480000512 in word form?
What best describes why Odysseus gave his wine to the Cyclops? He is hoping the wine will cheer up the Cyclops enough to set them free. He intends to make the C
Post hoc tests are used to​ a. ​determine whether an F-ratio is significant. b. determine whether h2 needs to be computed. c. make all pairwise comparisons betw
8) plsss helpp meeee!!
Cell city what is the widget?
» Max estimates 718 - 331 by rounding each number to the nearest 100. What is Max's estimate of the difference?