How Do You Solve This Antiderivative Problem?

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The discussion revolves around solving the antiderivative problem ∫ (2y^(1/2) - 3y^(2)) / 6y dy. The solution involves breaking down the integral into simpler parts, resulting in (2/3) √y - (1/4) y² + C. Participants confirm the correctness of the solution, suggesting that differentiation can be used to verify it. The method employed includes simplifying the integrand and applying basic integration rules. Overall, the solution is deemed accurate and valid.
rowdy3
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Find the following.
∫ (2y^(1/2) - 3y^(2)) / 6y ; dy
It's number 34 if you want to see it.Thanks.
http://pic20.picturetrail.com/VOL1370/5671323/23643016/396306428.jpg
I did
∫ [ ( 2√y - 3y² ) / ( 6y ) ] dy

= ∫ { [ (2√y ) / (6y) ] - [ (3y²) / (6y) ] } dy

= (1/3) ∫ ( 1/ √y ) dy - (1/2) ∫ y dy

= (1/3) [ 2√y ] - (1/2) [ y²/2 ] + C

= (2/3) √y - (1/4) y² + C ...... Ans.
Is that right?
 
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rowdy3 said:
Find the following.
∫ (2y^(1/2) - 3y^(2)) / 6y ; dy
It's number 34 if you want to see it.Thanks.
http://pic20.picturetrail.com/VOL1370/5671323/23643016/396306428.jpg
I did
∫ [ ( 2√y - 3y² ) / ( 6y ) ] dy

= ∫ { [ (2√y ) / (6y) ] - [ (3y²) / (6y) ] } dy

= (1/3) ∫ ( 1/ √y ) dy - (1/2) ∫ y dy

= (1/3) [ 2√y ] - (1/2) [ y²/2 ] + C

= (2/3) √y - (1/4) y² + C ...... Ans.
Is that right?

Looks good to me. You can always check by differentiating it.
 
Question: A clock's minute hand has length 4 and its hour hand has length 3. What is the distance between the tips at the moment when it is increasing most rapidly?(Putnam Exam Question) Answer: Making assumption that both the hands moves at constant angular velocities, the answer is ## \sqrt{7} .## But don't you think this assumption is somewhat doubtful and wrong?

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