`((36. 54)^2-(3. 46)^2)/?=40` (a) 3.308 (b) 4 (c) 33.08 (d) 330.8

((36.54)^(2)-(3.46)^(2))/(33.08(d)330.8)=40 (a) 3.308 (b) 4 (c)

((144)^(1/2)+(256)^(1/2))/(3^2-2) = (A) 8 (B) 4 (C) -4 (D) -8

((144)^(1/2)+(256)^(1/2))/(3^2-2) = (A) 8 (B) 4 (C) -4 (D) -8

Calculate the ratio of [HXOO^(-)] and [F^(-)] in a mixture of 0.2 M HCOOH (K_(a)=2xx10^(-4)) and 0.1 M HF (K_(a)=6.6xx10^(-4)) : (a) 1:6.6 (b) 1:3.3 (c) 2:3.3 (d) 3.3:2

(46)^(2)-(?)^(2)=4398-306616(b)28(c)36 (d) 42 None of these

The orthocentre of the triangle with vertices (0,0),(3,4), and (4,0) is (a) (3,5/4) (b) (3,12) (c) (3,3/4) (d) (3,9)

The orthocentre of the triangle with vertices (0,0),(3,4), and (4,0) is (a) (3,5/4) (b) (3,12) (c) (3,3/4) (d) (3,9)

The simplification of 3.36-2.05+1.33 equals (a) 2.60 (b) 2.64 (c) 2.61 (d) 2.64

If (a-2b-3c+4d)(a+2b+3c+4d) = (a+2b-3c-4d)(a-2b+3c-4d) then 2ad = "(a) 3bc (b) bc (c) 5bc (d) 2bc"

(1.6xx3.2)/(0.08)=?( a) 0.8(b)6.4(c)8(d)64(d) None of these