Question

13. Calculate the sum: 3 + (-3) + 3 + (-3) + 3 + (-3) + ...
(i) if the number of terms is 10.
(ii) if the number of terms is 15.
​

Answer 1

Answer:

if the number of terms is 10. then the ans is

0

if the number of terms is 15.then the ans is

= +3

Answer 2

Step-by-step explanation:

(I) 10+(-10)+10+(-10)+10+(-10)

10-10+10-10+10-10 =0

(ii) 15+(-15)+15+(-15)+15+(-15)

15-15+15-15+15-15=0

Please mark as brainliest answer.