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Find the intervals where the following f...

Find the intervals where the following functions are (a) increasing and (b) decreasing.
`y = {{:(x^(2) + 1,x le - 3),(x^(3) - 8x + 13,x gt -3):}`

Text Solution

Verified by Experts

The correct Answer is:
(a) `(-3, -sqrt((8)/(3))) uu (sqrt((8)/(3)), oo)`,
(b) `(-oo,-3) uu (-sqrt((8)/(3)),sqrt((8)/(3)))`
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