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രണ്ടു സംഖ്യകളുടെ തുക 10ഉം ഗുണനഫലം ഇരുപതും ആയാൽ അവയുടെ വ്യുൽക്രമങ്ങളുടെ തുക എത്ര ?

A2

B200

C1/2

D1/200

Answer:

C. 1/2

Read Explanation:

സംഖ്യകൾ a, b ആയാൽ

സംഖ്യകളുടെ തുക = 10

a + b = 10

സംഖ്യകളുടെ ഗുണനഫലം = 20ഗുണനഫലം

ab = 20

വ്യുൽക്രമങ്ങളുടെ തുക = 1/a + 1/b

= a+b/ab

= 10/20

= 1/2


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