This is the concept of sequences and series. To solve the question we proceed as follows: 2] T=-4n-3 to get the 11th term we substitute n=11 in the expression and simplify. Thus, plugging in n=11 we obtain: T=-4(11)-3 T=-44-3 T=-47 thus the 11th term is -47
3] General term is T=n²-1. The 7th term will be evaluated as above: plug in n=7 in the expression and simplify: T7=7²-1 T7=49-1 T7=48 thus the 11th term is 48
4] General sequence is T=1/3n². The term will be evaluated as follows: plug in n=3 in the expression and simplify: T3=1/(3×3²)=1/27 Thus the 3rd term is 1/27
