Verify the identity. cosine theta minus secant thetaequalsnegative sine theta tangent theta to verify the identity, start with the more complicated side and transform it to look like the other side. choose the correct transformations and transform the expression at each step.

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.