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 ( 68+ )
Otras preguntas
A man-made world event that would affect the labor market would be a(n) _____.
how quickly would groundwater flow through rock with high porosity and high permeability?pls explain
Progressive and conservative Republicans disagreed on which of the following in the early 1900s?
Which island nation is the largest in area,is it located in the bahamas the greater antilles or lesser antilles
14:16 in its lowest ratio form
The most common foot in English poetry is the _____. iamb trochee anapest dactyl spondee
What impact did the Brown vs Board of Education trial have on the Civil Rights Movement?
Which sentence is correctly punctuated? A. Sharon Day, the violinist played beautifully tonight. B. Sharon Day the violinist played beautifully tonight. C. Shar
2 differences between the people in Shakespeare's time period and the people today?
what PEMDAS is this (4+5)78-49