Question

If the sum of first terms of an A.P. is equal to the
sum of first g terms then show that the sum of its first
(ptq terms iszeno (pt)​

Answer 1

Answer:

S

p

=S

q

⇒

2

p

(2a+(p−1)d)=

2

q

(2a+(q−1)d)

⇒ p(2a+(p−1)d)=q(2a+(q−1)d)

⇒ 2ap+p

2

d−pd=2aq+q

2

d−qd

⇒ 2a(p−q)+(p+q)(p−q)d−d(p−q)=0

⇒ (p−q)[2a+(p+q)d−d]=0

⇒ 2a+(p+q)d−d=0

⇒ 2a+((p+q)−1)d=0

⇒ S

p+q

=0

Answer 2

Answer:

answer wil be 0

Step-by-step explanation:

a= 0

n=0

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