x+1/x=6 ho to x^3+1/x^3=? iska kya hoga
Answers
Answered by
0
Answer:
good question is
Step-by-step explanation:
plz mark as BRAINLIST
Answered by
0
Step-by-step explanation:
x+1/x=6 ……………..(1)
Squaring both sides
x^2+1/x^2+2=36
x^2+1/x^2=34 ………..(2)
On cubing eq.(1) both sides
x^3+1/x^3+3.x1/x.(x+1/x)=216
x^3+1/x^3+3×6=216
x^3+1/x^3=216–18
x^3+1/x^3=198………………(3)
Multiply eq.(2) & (3)
(x^2+1/x^2)×(x^3+1/x^3)=34×198
x^5+x+1/x+1/x^5=6732
x^5+6+1/x^5=6732
x^5+1/x^5=6732–6=6726 , Answer
Similar questions