Home
Class 8
MATHS
Write the following sets in roster (Tabu...

Write the following sets in roster (Tabular) form :
(i) `A_(1) = {x : 2x + 3=11}`,
(ii) `A_(2) ={x:x^(2)-4x - 5=0}`,
(iii) `A_(3) ={x:x in Z, -3 le x lt 4}`
(iv) `A_(4)={x:x ` is a two digit number and sum of the digits of x is 7}
(v) `A_(5) ={x:x =4n, n in W " and " n lt 4}`
(vi) `A_(6) = {x:x =n/(n+2), n in N " and " n gt 5}`

Text Solution

Verified by Experts

The correct Answer is:
(i) {4} (ii) {5, -1} (iii) {-3, -2, -1, 0, 1, 2, 3} (iv) {16, 25, 34, 43, 52, 61, 70} (v) {0, 4, 8, 12}
`{3/4,7/9,4/5,9/11,….}`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A_(2) = {x:x in N " and " 3 le x lt 7}

Write the following sets in the roster form : (i) {x : x^(2)-5x+6=0, x in N} (ii) {x : 2x-5 lt 4 , x in Z}

Write the following sets in the form of an interval (i) {x:x in R,2 ltxle5} (ii) {x:x in R,-5ltxlt3} (iii) {x:x in R,1 lt x lt 8} (iv) {x : x in R, -7 lt x lt4}

Write the following as intervals : (i) {x : x in R, -4 lt x le 6} (ii) {x : x in R, -12 lt x lt -10} (iii) {x : x in R, 0 le x lt 7} (iv) {x : x in R, 3 le x le 4} .

Write the following sets in tabular form : (i) {:x : x = (2n)/(n+2), n in W and n lt 3 } (ii) {x : x = 5y-3, y in Z and -2 le y lt 2 } (iii) {x : x in W " and " 8x + 5 lt 23}

Write the sets in the roster form B = {x : x in N and 4 lt x^(2) lt 60}

If (1 +x + x^(2) + …+ x^(9))^(4) (x + x^(2) + x^(3) + … + x^(9)) = sum_(r=1)^(45) a_(r) x^(r) and the value of a_(2) + a_(6) + a_(10) + … + a_(42) " is " lambda the sum of all digits of lambda is .

Let (1 + x^(2))^(2) (1 + x)^(n) = a_(0) + a_(1) x + a_(2) x^(2) + … if a_(1),a_(2) " and " a_(3) are in A.P , the value of n is

If the expansion in power of x of the function (1)/(( 1 - ax)(1 - bx)) is a_(0) + a_(1) x + a_(2) x^(2) + a_(3) x^(3) + …, then a_(n) is

If (1 + x + x^(2) + x^(3))^(n)= a_(0) + a_(1)x + a_(2)x^(2) + a_(3) x^(3) +...+ a_(3n) x^(3n) , then the value of a_(0) + a_(4) +a_(8) + a_(12)+….. is

Home
Profile