Shakawaldgi
Shakawaldgi
02-09-2016
Mathematics
contestada
sec^2x+2sec=0. solve the equation for 0
Respuesta :
HomertheGenius
HomertheGenius
10-09-2016
u = sec x ( substitution )
u² + 2 u = 0
u ( u + 2 ) = 0
u = 0, or u = - 2
1/cos x = 0 1/cos x = - 2
(not accepted ) cos x = -1/2
x 1 = 2π/3, x 2 = 4π/3
Answer Link
VER TODAS LAS RESPUESTAS ( 99+ )
Otras preguntas
given a right cylinder where h is the height and r is the radius what does the expression 2pirh represent? A. Base area B.Area C.Lateral area D.Volume
Question 3 (5.33 points)What national disaster caused people to distrust nuclear power as an alternative to fossil fuels
How do you solve this?
The average annual salary for employees in a store is $50,000. It is given that the population standard deviation is $4,000. Suppose that a random sample of 70
A class trip to a beach has been planned for your senior trip. The resort only allows swimming when the temperature is between 75 degrees and 110 degrees. There
The length of a rectangle is increasing at a rate of 6 cm/s and its width is increasing at a rate of 5 cm/s. When the length is 12 cm and the width is 4 cm, how
Will mark brainliest, please answer:) Find the value of AG. Round to the nearest tenths if necessary. Explain work. (Image of Question is above and use the 3D P
Which mapping represent a relation is a function PLEASE HELP ASAP
The graph below shows two normal distributions. What is the difference of the means of the distributions?
describe why decolonization is considered a major turning point in the 20th century.
