Math, asked by 9639013801, 9 months ago

a)10,3
(b)-5,3
(C)2,-15
(d) 6.5
-3,-8,-13, -18, .... अनुक्रम में पहली 10 संख्याओं का योग
क्या है?
(a)-255
(b)-260
(C)-250
(d)-245​

Answers

Answered by meenurana8696
0

Answer:

a=-3,d=-8-(-3)=-5

sn =n/2(2a+(n-1)d)

s10= 10/2(2×-3+(10-1)×-5)

=5(-6-45)

=5(-51)

-255(a)

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