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# Determine the value of x , the following function are incrasincr or decreasing-3x^2+12x+8

Asked by anchalborse1409 5th February 2019, 1:52 PM
F(x) = -3x2 +12x +8

dF/dx = -6x+12

if dF/dx is +ve, function value is increasing. Hence for increasing function -6x+12>0  or x > 2

if dF/dx is -ve, function value is decreasing. Hence for decreasing function -6x+12<0  or x < 2
Answered by Expert 6th February 2019, 7:34 AM
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