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

Can anyone help me out here?
while many microorganisms are harmful there are some that perform an important function. what is one example of suck a microorganisms
Which sign makes the statement true? -3 ? |3| is it greater than, less than, or equal to?​
Me compro un Frigorífico de 352,1 w de potencia, si la conecto a la red de 240 voltios. ¿Que intensidad de corriente (Amperios) demandará funcionando al máximo?
How does the addition of rubber bands affect the range of motion of the joint
Imagine that you are required to conduct a study about mental illnesses. What do you think is the best qualitative research approach to study people with mental
If cot= -1/3 and cos theta Greater than 0, find the trigonometric function values in simplest radical form
Given the figure below, find the values of x and z.
Find the length of side x in simplest radical form with a rational denominator.
importance of pre visiting an area of field of study​