Which is greater.(e)1.23 or 1.2

Which is greater.(h)1.431 or 1.490

Which is greater.(g)1.5 or 1.50

Which is greater: (iv) 1.37 or 1.49

Which is greater: (v) 2.03 or 2.30

Which is greater in each of the following: (-1)/4,1/4

Find (e) 23 - (-12)

For all n ge 1 prove that (1)/(1.2)+ (1)/(2.3)+(1)/(3.4)+.....+(1)/(n(n+1))=(n)/(n+1)

The solution set of x which satisfies the equation x^2 + (x+1)^2 = 25 where (x) is a least integer greater than or equal to x

lim_(n rarr oo) ((1)/(1.2) + (1)/(2.3) + (1)/(3.4) +…..+ (1)/(n(n+1))) is :

A ship is fitted with three engines E_(1),E_(2)and E_(3) . The engines function independently of each other with respective probabilities 1/2,1/4 and 1/6 . For the ship to be operational at least two of its engines must function . Let X denote the event that the ship is operational and let X_(1),X_(2)and X_(3) denote respectively the events that the engines E_(1),E_(2)and E_(3) are functioning . Which of the following is (are) true ?