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Let f(x)= ||x+2|-3|. If' a' denotes the ...

Let `f(x)= ||x+2|-3|.` If' `a'` denotes the number of local minima, `'b'` denotes the number of local maxima and `'c'` denotes the product of roots of `f(x) = 0,` then `a + 2b-c ` is

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The correct Answer is:
9

`c = -5, a=2, b=1`
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