x4 +1/x4 = 47 x3 +1/x3
3 and 4 are powers
Answers
Answered by
2
Answer:
here is your answer mate...
Step-by-step explanation:
x⁴+1/x⁴= 47
(x²)²+(1/x²)²+2 = 49
we know that.
a²+b²+2ab = (a+b)²
(x²+1/x²)² = 49
x²+1/x² = √49 = 7
(x)²+(1/x)²+2 = 9
(x+1/x)² = 9
(x+1/x) = √9 = 3
(x+1/x)³ = x³+1/x³+3(x)(1/x) [ x+1/x ]
(3)³ = x³+1/x³+3(3)
27 = x³+1/x³+9
27-9 = 18 => x³+1/x³
hope this helps
plz plz plz mark me as brainliest plzz...
Answered by
1
Answer:
plz mark me brainlist
plz rate 5 star
Attachments:
Similar questions