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

What did many people believe was the cause of the Black Death? answer is A.a punishment for sinful humans
Transcription stops at a specific sequence called a
Suppose cos V = 2/3 in the diagram below. What is TV?
Which most likely represents the process of dissolving carbon dioxide in soda?v
Why do schools strongly recommend vaccinations? A. to be fair to all students B. to protect school staff C. to guarantee that students regularly visit a doctor
Fill in the blank with the correct answer according to the School Activities video. A Jorge le gusta la clase de educación física porque le gusta __________ d
EZY POINTS Choose the best Spanish word to complete the sentence. ________ (speak) más despacio, por favor. Hablo Hablar Habla Hablan
Why are jupiter and saturn not perfectly spherical? they rotate rapidly. they have very active auroras that heat the atmospheres along the poles. they have stor
Select the correct product of (x2 + 3)(x3 – 5)
Which word from the passage provides a clue to the type of narration being used? a. lives b. most c. teacher d. I