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

Otras preguntas

Use the graph to determine the function's domain and range.

1/15 greater or less than 10/18

When a mixture of 12.0 g of acetylene (c2h2 and 12.0 g of oxygen (o2 is ignited, the resultant combustion reaction produces co2 and h2o?

A Pastry chef created a 40-ounce Sugar solution that was 28% from a 20% sugar solution and a 40% sugar solution .How much of the 20% sugar solution and how much

Alicia is a resident of the maldives, a chain of low-lying islands in the indian ocean. she is planning to buy a car. her friend jerome has advised her to buy a

if the outliers are not included, what is the mean of the data set 72,82,3,55,62,73,90,80,151,59,46,31

Do all iguanas sing opera or just mine? SERIOUS QUESTION.

which of the following could be a function with zeros of -3 and 2 a- f(x)=(x-3)(x+2) b- f(x)=(x-3)(x-2) c- f(x)=(x+3)(x-2) d- f(x)=(x+3)(x+2)

Use newton's laws to find an expression for the net external force acting on the car. ignore air resistance.

who wrote the twelve tablets of roman law? please answer! I have to answer this for a project it is half my grade.