Question

Find the sum of the following APs:
(i) 2,7,12,..., to 10 terms.
(iii) 0.6, 1.7, 2.8,.... to 100 terms.​

Answer 1

Answer:

here is ur answer.

Step-by-step explanation:

in (i) values are

a=7 , d= 5,. n=10

sum =n/2{2a+(n-1)d}

sum = 10/2{2×7+(10-1)5}

sum=295

in (ii) values are

a=0.6 , d=1.1 , n=100

sum =n/2{2a+(n-1)d}

sum=100/2{2×0.6+99×1.1}

sum=5505

HOPE IT HELPS.

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