(61) let f: [a, b la, b} be a continuous function. then a) lim,- ja f(r) sin nzdr = m b) lim-oo ja f(x) cos n.xdr = t c) lim,-o ja f(a) sin nzdr = 0 d) lim,-so

(61) Let f: [a, b la, b} be a continuous function. Then A) lim,- Ja f(r) sin nzdr = m B) lim-oo Ja f(x) cos n.xdr = T C) lim,-o Ja f(a) sin nzdr = 0 D) lim,-so Ja f(z) cos nzdr = 0.