Which of the following is irrational?
A.`sqrt(4/9)`
B. `4/5`
C. `sqrt(7)`
D. `sqrt(81)`
ANSWER : C

Which of the following is irrational? sqrt((4)/(9))(b)(4)/(5)(c)sqrt(7)(d)sqrt(81)

Which of the following number is irrational a. sqrt(4/9) b. 8/(27)3 c. (7pi)/(22) d. pi+sqrt(16-8pi+pi^2)

Which of the following is irrational? (a) (2-sqrt3)2 (b) (sqrt2+sqrt3)2 (c) (sqrt2-sqrt3)(sqrt2+sqrt3) (d) (2sqrt7)/7

Which one of the following are irrational numbers ? (i) sqrt(2+sqrt3) , (ii) sqrt(4+sqrt25) , (iii) root3(5+sqrt7) , (iv) sqrt(8-root3(8))

Classify the following number as rational or irrational . sqrt81

Which of the following number is not irrational ?(i)(2)/(sqrt(3)),(sqrt(3))/(4),sqrt((25)/(49)),7sqrt(2)

Prove that sqrt5+sqrt7 is irrational.

Which of the following is equal to root(3)(-1) a. (sqrt(3)+sqrt(-1))/2 b. (-sqrt(3)+sqrt(-1))/(sqrt(-4)) c. (sqrt(3)-sqrt(-1))/(sqrt(-4)) d. -sqrt(-1)

Which of the following is equal to root(3)(-1) a. (sqrt(3)+sqrt(-1))/2 b. (-sqrt(3)+sqrt(-1))/(sqrt(-4)) c. (sqrt(3)-sqrt(-1))/(sqrt(-4)) d. -sqrt(-1)

Which of the following is equal to root(3)(-1) a. (sqrt(3)+sqrt(-1))/2 b. (-sqrt(3)+sqrt(-1))/(sqrt(-4)) c. (sqrt(3)-sqrt(-1))/(sqrt(-4)) d. -sqrt(-1)