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00:00 - 00:59 | question is find the sum of n terms of the series was an atom is there is not enough / to raise to power and into S / tourist power and -1 start from at a given the event will be close to that will be divided with to raise to power and into check at that will be provided with a raised to power and beyond formula of GP sum formula of GP be noted that will be equal to 2 into 1 minus aaye to power and that will be divided with 1 - are so it is possible when if there will be smaller than one we can write by putting the value of by putting the value of that will be and by putting one and one that will be caused to 10 x 12 |

01:00 - 01:59 | us to be have similarly we can put it back to 10x better be divided by 2 into 1 similarly report and equal to 3 then we have tea thread that will be cos to the power 3 into 2 so now we can write write our will be worn by 4 of 3 by 3 Cube equals to 1 by 4 and 2 1 by 4 into account the are equal to 1 by 4 we can write our 8382 that will be equal to 1 by 4 so we can write |

02:00 - 02:59 | therefore one day show will be close to that is a will be equal to 1 by our can write summation summation of GP B have equal to ab why did with one minus 1 by 4 and then if we have 1 - 4 this we have equals to 10 set that will be divided with |

03:00 - 03:59 | into this may have forest power and minus 1 divided by 4 10 to power and now that will be divided with that will be provided with man minus 1 by 4 after so long that we can write 10 attacks that provided with two to have the power n minus 1 divided by 4 power and and that will be whole divided by 14 now |

04:00 - 04:59 | into 10 to power n minus 1 divided by 48 to power and / Sona ho can write therefore we can write the summation of GP summation of GP is 2 into 10 to the power n minus 1 divided by 4 is to power and and that's all divided we can say thank you |