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Chapter 1 Unit 1
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Lesson CCA: 1.2.3
> Problem 1-57
1-57.
If
, then
. Find:
Hint (a):
Substitute
for
.
Answer (a):
Hint (b):
Substitute
for
.
Answer (b):
Hint (c):
Refer to parts (a) and (b).
Answer (c):