Question

यदि x+1/x=5 है तो x³+1/x³ का मान ज्ञात करो?​

Answer 1

Answer:

Maine,

isme iss formula ka upyog kiya:

a³ + b³ = (a+b)(a²+b²-ab)

Step-by-step explanation:

x + 1/x = 5

x³ + 1/x³ = (x + 1/x)( x² + 1/x² - x×1/x)

= 5×((x+1/x)² - 3x× 1/x )

= 5× (25 -3)

= 5× 22 = 110