u must hav seen ques on no of solutions of questions lyk

f(x)= x + sin x

mod x = cos x

graph method is d simplst tool for des typ of questions ,,,but tell me how 2 plot it.......in d first question,,,sud v plot d graph of x and sin x separately...well thru dat v will get d solutions,,,,,,bt wen v hav 2 find pt of local maxima and minima ,,,den?????in d 1st questn find d no of local maxima.............

pl xpln odr 1 2