An elf has a staircase of n stairs to climb. each step it takes can cover either one stair or two stairs. find a recurrence relation for a_n, the number of different ways for the elf to ascend the n-stair staircase. find a recurrence relation for the number or ways the elf in example 2 can climb n stairs if each step covers either one or two or three stairs? how many ways are there for the elf to climb four stairs?

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step-by-step explanation:

step-by-step explanation:

first you will have to convert 3/4 into a decimal

which is .75

then you will have to divide 1.5 by .75

which is 2

no you have to divide

answer: answer: d) v= 1/6 bh  

step-by-step explanation:

since according to the given question,   a pyramid is placed inside a prism.

step-by-step explanation: