[" Which among the following compounds will be most reactive for "S_(N)1" reaction? "],[[" (A) "sqrt(-1)],[" (B) "sqrt(7)-c]],[" (C) "[[" a "],[" ch "_(3)]],[" (D) "sqrt((c)/(c)" th ")]

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

If a,b,c are positive real numbers,then sqrt(a^(-1)b)x sqrt(b^(-1)c)x sqrt(c^(-1)a) is equal to: 1 (b) abc(c)sqrt(abc)(d)(1)/(abc)

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 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)

If A(1,-1,2),B(2,1,-1)C(3,-1,2) are the vertices of a triangle then the area of triangle ABC is (A) sqrt(12) (B) sqrt(3) (C) sqrt(5) (D) sqrt(13)

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

Let a, b, c be in AP. Consider the following statements: 1. (1)/(ab),(1)/(ca)" and "(1)/(bc)" are in AP." 2. (1)/(sqrt(b)+sqrt(c)),(1)/(sqrt(c)+sqrt(a))" and "(1)/(sqrt(a)+sqrt(b))" are in AP." Which of the statements given above is/are correct?

The sides of a triangle are 11 c m ,\ 15 c m\ a n d\ 16 c mdot\ The altitude to the largest side is 30\ sqrt(7)\ c m (b) (15sqrt(7))/2\ c m (c) (15\ sqrt(7))/4c m\ (d) 30\ c m