Write the first five terms of the sequence. a n = -1() n - 1 -1, -3, -9, -27, -81 -1, , , , -1, , , ,

given expression is

we have radical  

we need to select an option that has same radical

(a)  

this expression has cube root instead of square root . so it is not a like radical.

(b)

y is included inside the radical. so it is not a like radical.

(c)

this expression has cube root instead of square root . so it is not a like radical.

(d)

5 is inside the radical square root. so it is   a like radical.

a 1 inch botton is five eighths longer than a three eighth botton