Question

E = { x:x is a natural number
x is a multiple of 7 x < 601
Full Solution I need

Answer 1

Answer:

A = {x:x is a natural number and multiple of 3} = {3,6,9…}

As, B = {x:x is a natural number less than 6} = {1,2,3,4,5,6}

A∪B = {1,2,4,5,3,6,9,12…}

∴, A∪B = {x:x=1,2,4,5 or a multiple of 3}

Answer 2

Answer:

E = {7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98, 105, 112, 119, 126, 133, 140, 147, 154, 161, 168, 175, 182, 189, 196, 203, 210, 217, 224, 231, 238, 245, 252, 259, 266, 273, 280, 287, 294, 301, 308, 315, 322, 329, 336, 343, 350, 357, 364, 371, 378, 385, 392, 399, 406, 413, 420, 427, 434, 441, 448, 455, 462, 469, 476, 483, 490, 497, 504, 511, 518, 525, 532, 539, 546, 553, 560, 567, 574, 581, 588, 595}

Hope it helps!!