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Algebra and Applications Test 2
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© examsnet.com
Question : 1
Total: 40
What is the value of
(
1
+
w
r
−
s
)
−
1
+
(
1
+
w
s
−
r
)
−
1
?
-1
1
r - s
0
None of these
Validate
Solution:
👈: Video Solution
(
1
+
w
r
−
s
)
−
1
+
(
1
+
w
s
−
r
)
−
1
⇒
1
(
1
+
w
r
−
s
)
+
w
r
−
s
(
1
+
w
r
−
s
)
=
1
© examsnet.com
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