07-06-2016
Mathematics

contestada

7 cos x+1=6 secx solve for x

Respuesta :

padawan padawan

07-06-2016

7cos(x) + 1 = 6sec(x)
7cos(x) + 1 = 6/cos(x)
7cos^(x) + cos(x) = 6
7cos^(x) + cos(x) - 6 = 0
[7cos(x) - 6][cos(x) + 1] = 0
cos(x) = 6/7 , x = arccos(6/7) and
cos(x) = -1, x = 180

Answer Link

Otras preguntas

True or False you should eat more of the top of the triangle?I say true.

Find the domain of the function f(x)=x+22/x-1

What was the first act that the Parliament passed in an attempt to raise revenue by taxing the American colonists?A. The Quartering Act: obligated colonial legi

Sweet she has two orange picks for every green pig if six of the pictures are three how many pics are orange

Refer to Explorations in Literature for a complete version of this narrative. Read this excerpt from “About Russell” by Rita Williams-Garcia. When he did s

Which of the following is true of symptoms of disease? A. Symptoms are directly caused by the pathogen. B. Symptoms are the body's response to an infection.

Wich product is equivalent to 25x2 -16

1,760 yards = miles

What is the value of the expression evaluated for x = 12?

PLEASE HELP ME I APPRECIATE IT ALL