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OpenStudy (anonymous):
Find the minimum value of (9a2sin2 a+ 4)/(asina) for 0< a< (pi).
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OpenStudy (anonymous):
[(9a^2)(sin^2a) + 4 ]/ (asina)
OpenStudy (anonymous):
what is the minimum value of (9b^2 + 4) / b ?
OpenStudy (anonymous):
12??
OpenStudy (anonymous):
ya. if you understand x + ( 1/x ) then you understand 6 times ((3b/2) + (2/3b)) ... just make sure that you've identified where a sin(a) is able to attain that maximum value
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