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The no. of solutn of the eqn |x|=cosx is ?
Plz xplain the answer.
Hi Pooja,
Draw the graph of cosx.
And also draw the graph of |x| ---------{which is a "V" shaped graph}
Clearly the two graphs will intersect in two points, one to the right of the y-axis and the other to the left of the y-axis.
So the equation will have two roots.
Best Regards,
Ashwin (IIT Madras).
There are 2 solutions.
Try to solve it graphically .. Draw |x| and cosx graphs and check the no. of intersection points ,, it will have 2 intersecting points.
The answer is Two. Pls See the attahed image for explanation.The point of intersections are 0.73 and -0.73
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