- 1 The explicit formula for a geometric sequence is an =
125(3)
What is a recursive formula for the sequence?
O
Aan=5 (an-1: a1 = 25
B. an = 5 (an+ 1); a1 = 25
o
an
} (an+1); a = 125
D
an
} (an- ; a = 125

so far i think you have the right thing going for you just remember soh cah toh

step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.