X+1/X=5, find value of X2-1/x2
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Answer:
the answer is,the value is 3
kimrose1512:
The answer is 23 not 3 !!
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Answer:
If X+1/x=5 find the value of x2+1/x2
Given :
( x + 1 /x ) = 5
We need to find X2+ 1 / x2
( x + 1 / x )2 = 25
= x2 + 1 / x2 + 2 (x)(1)(1/x) =25
= x2 + 1/x2 + 2 = 25
= X2 + 1 / x2 = 25 – 2
= X2+ 1 / x2=23
Hence X2+ 1 / x2= 23
Step-by-step explanation:
Hi !!
Hope it helps you !!
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