ikuzmenko101
ikuzmenko101 ikuzmenko101
  • 02-12-2021
  • Mathematics
contestada

Simplify the expression using trigonometric identities: sec (–θ) – cos θ.

Respuesta :

Аноним Аноним
  • 15-12-2021

Answer:

sin θ . tan θ

Step-by-step explanation:

Note : -

sec ( - θ ) = sec θ

Formula / Identity : -

sec θ = 1 / cos θ

sec ( - θ ) - cos θ

= [ 1 / cos θ ] - cos θ

{ LCM = cos θ }

= [ 1 / cos θ ] - [ cos²θ / cos θ ]

= [ 1 - cos²θ ] / cos θ

{ 1 - cos²θ = sin²θ }

= sin²θ / cos θ

{ sin²θ = sin θ . sin θ }

= sin θ . sin θ / cos θ

{ sin θ / cos θ = tan θ }

= sin θ . tan θ

Hence, simplified.

Answer Link

Otras preguntas

What is 0.75 as a fraction in simplist form
how do you model the square root of 16
A number is divided by 32 is 96. What is the number?
Which of the following is x⁴ + y⁴ identically equal to? (A) (x² + y²)(x + y)(x - y) (B) (x² + xy + y²)(x² - xy + y²) (C) (x² + √2xy + y²)(x² - √2xy + y²) (D) (x
What metric unit should i use to measure the mass of a monkey
at what point do scientists classify an area's weather as its climate? 1 year ,5 years ,15 years or 30 years
Mario drew a model to represent one third of the space in his bookcase. how could mario draw a model to represent all the space in his bookcase.
translate into an equation. Five times the sum of twice a number, x, and six is thirty. Find the number.x = Translate into an equation. The difference b
what SI unit would best be used to express the height of your classroom ceiling ?
What is adaptation in animals and plants