Question

the degree of 4x³+2x+7is
​

Answer 1

Answer:

Hey mate

Please mark it as brainliest

Sum of first n terms,

S

n

=

1−r

a(1−r

n

)

Sum of terms from (n+1)th to 2n th term is,

S

2n

−S

n

=

1−r

a(1−r

2n

)

−

1−r

a(1−r

n

)

=

1−r

a(r

n

−r

2n

)

Ratio,

=

1−r

a(r

n

−r

2n

)

1−r

a(1−r

n

)

=

r

n

−r

2n

1−r

n

=

r

n

(1−r

n

)

1−r

n

=

r

n

1

Hence proved.

Answered By hari00_s

Step-by-step explanation:

Mark it as brainliest

Hoping that you understand

Answer 2

Answer:

Degree = 3

Step-by-step explanation:

I hope it is useful..