यदि a^(2) + b^(2)= 45 तथा ab=18, तो (1)/...

यदि `a^(2) + b^(2)= 45` तथा `ab=18`, तो `(1)/(a) + (1)/(b)` होगा

A

`5//7`

B

`7//8`

C

`+- 1//2`

D

`+- 1//3`

लिखित उत्तर

Verified by Experts

The correct Answer is:

C

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