1.

27. यदि a तथा b दो वास्तविक संख्यायें ऐसी हों कि ab = 0, तो(a) a= 0 तथा b = 0(6) 4 = 0 अथवा b = 0 अथवा दोनों में से प्रत्येक 0(c) a= 0 तथा b* 0(d) b = 0 तथा 4# 0(रेलवे परीक्षा, 2006

Answer»

right answer is option b

the correct answer is option (b)

option (b) is the correct answer.

a correct answer is (1)



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