Question

If x + 1 upon x=3 . Calculate x square+1 upon x square,x cube +1 upon x cube,x to power 4 +1 upon x power 4

Answer 1

Answer:

i) x²+1/x² = 7

ii) x³+1/x³ = 18

iii) x⁴ +1/x⁴ = 47

Explanation:

x + 1/x = 3 ----(1) [given ]

i) x²+1/x² = (x+1/x)² - 2

= 3² -2

= 9 -2

= 7 ---(2)

ii) x³+1/x³ = (x+1/x)³+3(x+1/x)

= 3³ - 3×3

= 27 - 9

= 18 ---(3)

iii ) x⁴ + 1/x⁴ = (x²+1/x²)² -2

= 7² -2

= 49 -2

= 47

••••

Answer 2

Answer:

this annswer is complete in both question.

1&2 part are in 1st page &3rd part is in 2nd page