A)10,3(b)-5,3(C)2,-15(d) 6.5-3,-8,-13, -18, .... अनुक्रम

1.	A)10,3(b)-5,3(C)2,-15(d) 6.5-3,-8,-13, -18, .... अनुक्रम में पहली 10 संख्याओं का योगक्या है?(a)-255(b)-260(C)-250(d)-245
Answer» 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)

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

Answer»

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

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