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Please explain step by step #62 and #63. Will give thumbs up.
In the following exercises, express the limits as integrals. 60. lim Σ (x) Δ.r over [1,3] 1-0 61. lim lim Σ (5(mg)* 3(r;)°) Διονοι (0,2] 62. lim , sin? (2πχ;) Δæ over [0,1] 63. lim 10 , cos” (2ππ;) Δæ over [0,1] i=1