Question

if alpha ,bita are roots of equation ax^2+bx+c then write alpha^5+bita^5 in terms of a,b,c​

Answer 1

Step-by-step explanation:

Given: The average age of a class of 20 students is 12 years. When the age of teacher is included, the average is decreased by eight months.

To Find : Age of teacher

Solution:

Teacher age should be more than students age hence average age should increase, not decrease,

Still 1st Solving as per given data

Students = 20

Average age = 12 Years Total age = 20 * 12 = 240 Years

Teacher Age = N years

Total Age = 240 + N Years

Total Person = 20 + 1 = 21

Answer 2

Answer:

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