Math, asked by tanishthasaha, 1 day ago

If y-5/y=4, then find
I) y²+25/y²
II) y³-125/y³

Answers

Answered by CPSEKHAR

0

Step-by-step explanation:

Given y-5/y=4

(y-5/y)^2=4^2

y²+25/y² -2.y.5/y = 16

y²+25/y² -10 = 16

y²+25/y² = 16+10

y²+25/y² = 26

y³-125/y³ = (y-5/y)(y²+25/y² +y.5/y)

= (4)((26+5)

= (4)(31)

= 124

y³-125/y³ = 124

Previous Question

Next Question

Similar questions

Physics, 23 hours ago

A train covers the half of the distance between two stations at a speed 70 km/hr and other half at 30 km/hr. Then average speed of train is...

Physics, 23 hours ago

who was the leader of African National Congress Mahatma Gandhi Nelson Mandela Bill Clinton answer me fast please ...

Math, 23 hours ago

divya ki aatma hai new id hai...

History, 1 day ago

4) first Prime Minister of Britain was 50 points...

Computer Science, 1 day ago

Computer is derived from the word “Compute” ___________ * True False what is the Right option ...

Math, 8 months ago

Solve the following (1 to 9) linear equations 3(2x-1)+25%of x=97 ...

Computer Science, 8 months ago

information literacy an technology literacy are traditionally seen as a separate and distinct fields...

Math, 8 months ago

find the zeroes of each of the following quadratic polynomials and verify the relationship between the zeroes and their coefficients. 1. 3x² - x - 4...