If x- 1/x =4 then find the value of x square plus 1/x square
Answers
Answered by
1
Answer:18
Step-by-step explanation:(x²+1/x²)=(x-1/x)²+2.x.1/x
=4²+2
=16+2
=18
Answered by
0
Answer:
18
Step-by-step explanation:
x-1/x=4
(x-1/x)²= 16
x²-2+1/x²= 16
x²+1/x²=18
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