a dining table is marked at Rs 1500 with 10% and 20% of an additional one allowed discount of 5% is allowed for cash payment find the selling price at the dining table for each payment

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Step-by-step explanation:

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.