How do I do this? (1 Viewer)

[SB257426]

I got part a )

For b) I managed to prove k^k < 1/4(k+1)^k+1 but i am struggling to prove the middle bit for some reason which shouldnt be that hard but idk why im struggling lol

 

[carrotsss]

Hope this helps

 

[SB257426]

View attachment 40284
Hope this helps

oh lol i just realised what i did wrong.... guess i was being stupid lol

 

[SadCeliac]

dont you do this by considering under/over estimates of the exact area under the curve???

 

[howcanibesmarter]

yep, areas of rectangles above the curve> area under the curve > area of rectangles below the curve

 

[howcanibesmarter]

pretty sure we had this exact question in one of our assessments