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

What is the name of this molecule? O A. Pentane O B. 2-methylpentane O C. 2-pentyne O D. cis-2-pentene

Which example most directly uses a medium to influence an audience? O A. A cartoon uses fewer frames than an animated movie in order to save money O B. A carto

PLEASE HELP DESPERATE

anyone have sna pc hat ?? mine is rince9253

8/m - b/n simplified

________duties are tailored at the request of the Program Manager (PM) and are written in the Memorandum of Agreement, signed by both the PM and the Contract Ad

help me with this question I only have 3 minutes left

Mention one reason why south africans need to help those affected by gender based violence

HELP PLS ASAP! The function f(x) = 7x + 1 is transformed to function g through a horizontal compression by a factor of 3. What is the equation of function &am

Lightfoot Inc., a software development firm, has stock outstanding as follows: 20,000 shares of cumulative preferred 4% stock, $20 par, and 25,000 shares of $50