Question

find the co efficient of x²+x+1
explain​ pls

Answer 1

the co-efficient of x^2 and x in

x²+x+1 are

1, 1 .

coefficient is a number multiplied with a variable.

Answer 2

Answer:

Consider the polynomial:

y=3x2−2x+4

The coefficient of x is −2 .

The coefficient of x2 is 3

For a general function f(x) , we can expand in terms of the (an extension of the idea of a Taylor series to include negative power terms):

f(x)=∑n=−∞+∞(anxn)

The “coeffecient of xn " is then trivially given by an

For example, the expansion of the polynomial up there is simply given by:

a0=4

a1=−2

a2=3

an=0 n≠0,1,2

And so we see that we recover the coefficient of x2 is 3, as we said above.

The specific case you have given is:

an=2(if n = -1)

an=0(else)