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OpenStudy (anonymous):
Find the least value of 'a' such that f(x)=x^2 + ax+1 is strictly increasing in (1,2) is ?
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OpenStudy (anonymous):
@RadEn @amistre64
OpenStudy (anonymous):
strictly increasing means f'(x)>0 in (1,2) so 2x+a>0 so a have to be bigger than -2. This also means that there is no least value of a in the set a>-2
OpenStudy (anonymous):
that make sense..thxx
OpenStudy (anonymous):
yw
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