Here, let `f(x)=sin x` and `g(x) =x/10`. Also, we know that `-1 le sin x le 1`. `rArr -1 le x/10 le 1` or `-10 le x le 10` As, sketch both curves when `x in [-10, 10]`. From figure, `f(x)=sin x` and `g(x)=x//10`intersect at seven points. so, the number of solution is seven.
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