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 ( 17+ )
Otras preguntas
What was causing economic booms in the north and south
Paul's mp3 player has a total of 852 songs. He has 4 different groups of songs. If he puts an equal number of songs in each group,how many songs will be in each
2 questions technology/ ELA questions 1. what point of view provides info about others? A. first person B. second person C. third person 2. to place the cap
Two containers, labeled A and B, are filled with red and blue marbles according to the quantities listed in the answer choices below. Each container is shaken v
Paul invested three times as much money in the account paying 5% interest then he did in an account paying 4% of the total interest paid was $475 how much did h
At the end of the month mr copley has $1473.61 in is checking account his checkbook showed the following transaction if made made an initial deposit of $75 that
help me out with #12 please
what is the answer to 2 2/7
13 is at least the difference of a number v and 1, what’s the inequality
In terms of biomass, deep ocean habitats are similar to___?
