document.write( "Question 1183085: Sketch sinx and its inverse on the same set of axes for 0≤ x ≤ (pi/2)\r
\n" ); document.write( "\n" ); document.write( "I sketched sinx but I don't know how to sketch it's inverse on the same axis, as for its inverse I know that when x = 1, y = (pi/2) but I already put the radians unit on the x axis.
\n" ); document.write( "

Algebra.Com's Answer #813244 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
putting them on the same axis is tricky, but it can be done.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "we'll work in radians.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "the graph of y = sin(x) is shown below.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "the graph of y = sin^-1(x) is shown below:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "the difficulty is that:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "when you graph y = sin(x), x is the angle and y is the trig function value.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "when you graph y = sin^-1(x), x is the trig function value and y is the angle.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "to graph them on the same axes, let the x-axis remain as the angle.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "the functions are y = sin(x) and y = sin^-1(sin(x)).\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "that graph looks like this:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "the blue graph is y = sin(x).
\n" ); document.write( "the red graph is y = sin^-1(x).\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "when x = pi/2, y = sin(x) = 1 and y = sin^-1(sin(x)) = pi/2, as shown on the graph.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "the coordinate point for y = sin^-1) is shown as (pi/2,pi/2)
\n" ); document.write( "that means the x-value is pi/2 and the y-value is pi/2).
\n" ); document.write( "the x-value is pi/2, which is the angle.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "y = sin(x) is equal to 1.
\n" ); document.write( "the coordinate points are (pi/2,1)
\n" ); document.write( "this is what is shown on the blue graph.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "y = sin^-1(sin(x)) is equal to sin^-1(1) which is equal to pi/2.
\n" ); document.write( "the coordinate points are (pi/2,pi/2)
\n" ); document.write( "this is what is shown on the red graph.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "keep in mind that the function y = sin^-1(sin(x)) will always make the value of y equal to the value of x.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "not matter what value of x you choose, y will always be equal to x.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "for example, if x = pi/4, sin(pi/4) = .7071067812.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "sin^-1(.7071067812) = .7853981634.
\n" ); document.write( "divide that by pi and it becomes .25 * pi which is the same as pi/4.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "sin-1(sin(pi/4) is equal to pi/4.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "sin^-1(sin(pi/2) is equal to pi/2 as shown on the graph.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );