Question

She to th term of Al-
-40, 15, 16, 35, is​

Answer 1

Answer:

Sum of an AP. Find the sum of 35 terms of...

Step-by-step explanation:

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10th

Maths

Arithmetic Progressions

Sum of an AP

Find the sum of 35 terms of...

MATHS

Find the sum of 35 terms of the series whose p

th

term is

7

p

+2.

HARD

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ANSWER

T

P

=

7

P

+2

Sum =

P=1

∑

35

(

7

P

+2)

=

7

1

∑

P=1

35

P+2∑

P=1

35

(1)

=

7

1

[1+2+3+4+..........+35]+2[1+1+1+1+..........35terms]

=

7

1

×

2

35×(35+1)

+2×35

=5×18+70

=90+70

=

160