Practice Questions

A = {x : x ഒരു പൂർണ്ണസംഖ്യയും –3 ≤ x < 7}

A = {-3, -2, -1, 0, 1, 2, 3, 4, 5, 6}

{x : x = അഭാജ്യ സംഖ്യ ; x > 3}

{x : x , ഒരു എണ്ണൽ സംഖ്യ 5 > x, x < 7}

= {6}

2 കൊണ്ട് നിശേഷം ഹരിക്കാവുന്ന ഒറ്റ സംഖ്യകളുടെ എണ്ണം

2 അല്ലാത്ത ഇരട്ട അഭാജ്യ സംഖ്യകളുടെ എണ്ണം

{x : x , ഒരു എണ്ണൽ സംഖ്യ 5 > x, x < 7}

{y : y , രണ്ട് സമാന്തര വരകൾ ക്കിടയിലെ പൊതുവായ ബിന്ദു }

S = { The set of all letters in the word TRIGNOMETRY}

S ={T, R, I, G, N, O, M, E, Y}

S = {x : x is a prime number ; x ≤ 12}

S = { 2, 3, 5, 7, 11}

S = { 3, 6, 9, 12}

S = {x : x is a multiple of 3 ; x≤ 12}

S= {1/2, 2/3, 3/4 4/5, 5/6, 6/7}

S = { x ; x = n/n+1 ; 1 ≤ n ≤ 6}

A ={1,4,9,16,25,36}

A = { x : x =n² ; x ≤ 6}

{ x : x = n+3; n is a natural number and x ≤ 36 }

A = { x : x = vowels in the word PRINCIPLE}

A = { I, E}

A = { x : x is a perfect square ; x< 50}

x is a perfect square ; x²< 50

⇒ x = 1, 2, 3, 4, 5, 6, 7

A = {1, 2, 3, 4, 5, 6, 7}

A = { x : x is a perfect number ; x < 40}


 A = {6, 28}

a perfect number is a positive integer that is equal to the sum of its positive proper divisors, that is, divisors excluding the number itself.

x² + x - 2 = 0

(x + 2)(x -1) = 0

x = - 2 or +1

the set of solution for the equation x² + x - 2 = 0

A = { -2, 1}

prime numbers less than are 2 , 3 , 5 , 7 .

 set of all prime numbers less than 10 = {2, 3, 5, 7}

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