20
RCMultiple Choice
Unit Test — Cumulative exam
Question 20 • SS26 Math 3 S2 [M3960OX]
Melanie simplified the expression as shown below.Step 1:Step 2:Step 3:Step 4:In which step did Melanie make the first error, and which expression should she have written in that step?
Answer
A
step 1;
B
step 1;
C
step 4; cos(x)D
step 4; csc(x)