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CDS Model Paper 1 Mathematics
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© examsnet.com
Question : 87
Total: 100
The value of the expression
x
4
−
17
x
3
+
17
x
2
−
17
x
+
17
at
x
=
16
is
0
1
2
3
Validate
Solution:
x
4
−
17
x
3
+
17
x
2
−
17
x
+
17
=
x
4
−
16
x
3
+
16
x
2
−
16
x
−
x
3
+
x
2
−
x
+
17
When
x
=
16
,
Expression
=
16
4
−
16
4
+
16
3
−
16
2
−
16
3
+
16
2
−
16
+
17
=
1
© examsnet.com
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