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 is the difference between a theme and a universal theme? A theme is directly stated, while a universal theme is implied. A theme relates to one part of a w
In this unit, you read a presidential speech, two poems, a memoir excerpt, short stories, and an editorial. In terms of what it shows about America, being Ameri
Find the perimeter. 15 ft 25 ft if the 25ft is diagonal in a rectangle
I need help asp. Identifying Geometric Figures.
help please ive tried with my friends and no luck
What law requires you to slow down and change lanes when approaching a roadside incident where emergency personnel might be working?.
does someone mind helping me with this problem? Thank you!
momentum? b. A student claim that he can produce linear momentum in carrom men with the help of a striker. Is his claim true? Explain. [2] inciple of conservati
Which is the correct classification of StartRoot 18 EndRoot? irrational number, non-repeating decimal irrational number, terminating decimal rational number, te
Which one is written correctly? The young spoilt rebellious child got scolded in class The spoilt young rebellious child got scolded in class The rebellious spo