Ask a New Question

Asked by RAYMOND

THE VALUES OF X THAT ARE SOLUTIONS TO THE EQUATION [COSX]^2 = SIN2X IN THE INTERVAL 0 TO PI??
16 years ago

Answers

Reiny
(cosx)^2 = 2sinxcox
(cosx)^2 - 2sinxcosx = 0
cosx(cosx - 2sinx) = 0
cosx = 0 or cosx = 2sinx

if cosx=0 then <b>x = pi/2</b>

if cosx = 2sinx
sinx/cosx = 1/2
tanx = 1/2
<b>x = .46365</b>
16 years ago

Related Questions

What is the name for the solution that can dissovlce no more solutte? a.unsaturated b.saturated c... How do you know if these solutions are acidic, basic, or nearly neutral? a. NH4NO2 b. Cr(NO3)3 The values of x that are solutions to the equation cos^(2)x=sin2x in the interval [0, pi] are a.... I have 500 mL of a 6.0 M solution that I want diluted down to 2 M. How many mL of water should I add... what will be the pH of a solution NaOH with the concentration 2,2.10mol 0=-3x^2+18x+27 A) one solution B) two solutions C) no solutions D) infinitely many solutions y = 5x-1 y = -5x+9 the solution is (simplify your answer. type an ordered pair) All of the following are solutions to urban sprawl, except __________. A. the development of recyc... Is ( – 2, – 7) a solution to this system of equations? 10x–5y=15 3x–8y= – 50 23 Which value of x is a solution to this equation? Q 3x ^ 2 - 30x - 72 = 0 B x = - 4 D x =...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use