Find the sum of the series 1.2.3.4.5 + 2.3.4.5.6 + …… n terms.

Question

noogler · Answer

first find nth term of given series then apply summation u will get but this methd is more cmplicated for this type of problems. so to save time use verificaion process that is u have put a natural number in place of n if u took n=1 then add first term of given series if u took n=2 then add first two terms of given series mstly n=1 gives u crrect ans

Mohammad Kavish · Answer

What is verification process?? plzz explain this question hw to solve this with procedure

noogler · Answer

i mean to say that certain options r provided to u in competitive exams in the above problem may be 4 options will be provided to u definetly those options will be in terms of n so, now u have to put n=1 in those options u will get certain answer and it will be equal to 1.2.3.4.5 as it is the first term in given series if more than one option satisfies it,then take n=2 and it will be equal to 1.2.3.4.5+2.3.4.5.6. (it is the sum of first two terms in given series) REMEMBER U MUST TAKE NATURAL NUMBERS IN THE PLACE OF n it is best way to solve this kind of problems.i always use this method nd always get correct ans for simple series u can easily apply summation method hope it will also helped u And approve if it helped u

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Find the sum of the series 1.2.3.4.5 + 2.3.4.5.6 + …… n terms.

Find the sum of the series 1.2.3.4.5 + 2.3.4.5.6 + …… n terms.

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