R red802 Member Joined Jan 25, 2006 Messages 101 Gender Undisclosed HSC N/A Jun 4, 2006 #1 solve sinx =1/2 , 0<x<2n i know how to draw it, but how do i find out the intersection, can someone show the working out
solve sinx =1/2 , 0<x<2n i know how to draw it, but how do i find out the intersection, can someone show the working out
A adgala Member Joined Oct 27, 2004 Messages 111 Location Sydney Gender Male HSC 2006 Jun 4, 2006 #2 sinx = 1/2 sin^-1 1/2 = x x = pi/6 , 5pi/6 or draw the sinx graph, draw y = 1/2, the intersecting points (on the x axis) correspond to the answer
sinx = 1/2 sin^-1 1/2 = x x = pi/6 , 5pi/6 or draw the sinx graph, draw y = 1/2, the intersecting points (on the x axis) correspond to the answer
