Question

The sum of first q terms of AP is 6q – 3q2. If its pth term is -60. Find the value of p. Also find its 11th term.

Answer 1

Answer:

I Kwon answer

Step-by-step explanation:

pls witi some time I will solve

Answer 2

$\huge\star\bold\red{ANSWER}$

$\star\bold\red{Given:-}$

Sn=6n-3n²

An=-60= l--------(1)

$\star\bold\red{To}$$\bold\red{Find:-}$

n=?

A11=?

$\star\bold\red{Solution:-}$

As we know

Sn=$\frac{n}{2}$(a+l)

$\frac{n}{2}$(a+l)=6n-3n²

n(a+l)=2(6n-3n²)

n(a-60)=12n-6n². [from equ---(1)]

sry brother I get confused while typing I will edit it later . sry for this