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Que : 91. Write true / false in the following statements :

(i) If A and B are two events such that P(A) ≠ 0 and P(BIA)=1, then A ⊂ B.

(ii) Probability that A speaks truth is 4/5. A coin is tossed. A reports that a head appears. The probability that actually there was head is 4/5.

(iii) Any point outside the feasible region is the feasible solution .

(iv) If l, m, n are the direction cosines of a line, then l2 +m2+n2 = 0.

(v) The vector sum of the three sides of a triangle taken in order is


Answer: