Answer:
Step-by-step explanation:
The second one.
Answer:

Step-by-step explanation:
By AA Similarity, triangles ASR and EST are similar.
The ratio of the lengths of the sides of triangle ASR to those of EST is 6/8 or 3/4.

Also,

By a rule of proportions, you get





Answer:
1.5sin4x
Step-by-step explanation:
I just answered this question and got it right.