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If a^4+1/a^4=50, a>0, then find the valu...

If `a^4+1/a^4=50, a>0`, then find the value of `a^3+1/a^3` .
यदि `a^4+1/a^4=50, a>0` है, तो `a^3+1/a^3` का मान ज्ञात करें ।

A

`sqrt(2(1+sqrt13)) (-1+2 sqrt13)`

B

`sqrt(2(1-sqrt13)) (-1+2 sqrt13)`

C

`sqrt(2(1+sqrt13)) (-1-2 sqrt13)`

D

`sqrt(2(1+sqrt13)) +(-1+2 sqrt13)`

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