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Question

Make correct statements by filling in the symbols or ⊄ in blank spaces:
(i) {2,3,4}......{1,2,3,4,5}
(ii) {a,b,c}...{b,c,d}
(iii) {x:x is a student of Class XI of your school}. . .{x:x student of your school}
(iv) {x:x is a circle in the plane} . . .{x:x is a circle in the same plane with radius 1 unit}
(v) {x:x is a triangle in a plane} . . . {x:x is a rectangle in the plane}
(vi) {x:x is an equilateral triangle in a plane} . . . {x:x is a triangle in the same plane}
(vii) {x:x is an even natural number} . . . {x:x is an integer}

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Solution

(i) {2,3,4}{1,2,3,4,5}

(ii) {a,b,c}⊄{b,c,d}

(iii) {x:x is a student of class XI of your school}{x:x is student of your school}

(iv) {x:x is a circle in the plane}⊄{x:x is a circle in the same plane with radius 1 unit}

(v) {x:x is a triangle in a plane}⊄{x:x is a rectangle in the plane}

(vi) {x:x is an equilateral triangle in a plane}{x:x is a triangle in the same plane}

(vii) {x:x is an even natural number}{x:x is an integer}

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