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VIVEK SHRIVASTVA

· started a discussion

· 1 Months ago

h (Question: 257134.0 )

please explain it properly ...as u said for a look but there is not any explanation..

Question:

If  a=1a-7(a>0)   , then value of a +  1a    is–

Options:
A)

53    

B)

53

C)

54.6

D)

57.4

Solution:

Ans: (a)

  

Varun

· commented

· 1 Months ago

a-(1/a) ki value 7 aa gayi hai....ab square both side.....ab -2 ko right me leja and dono side +2 add karde....and finally both side sqare root kardo....isse a+1/a ki value mill gayi....now solve fr a
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