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CBSE Class 10 Answered

How to find maximum and minimum value of a polynomial?
Asked by acv27joy | 15 Oct, 2018, 10:17: PM
answered-by-expert Expert Answer
1. Differentiate it wrt variable
2. then equate to zero, find the roots
3. then find the second derivative
4. sub the roots obtained in step 2 , suppose 'a' is one of the roots
    if   f"(a)<0 ......maxima at a
         f"(a)>0......mimima at a
Answered by Arun | 19 Oct, 2018, 11:03: AM

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