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Byju's Answer
Standard XII
Mathematics
Domain and Range of Trigonometric Ratios
Number of dis...
Question
Number of distinct terms in the expansion of
(
x
+
y
+
z
+
w
)
50
is equal to
A
53
C
3
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B
51
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C
51
2
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D
51
C
3
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Solution
The correct option is
A
53
C
3
Number of terms = Number of non-negative integral solution of the equation p + q + r + s = 50
=
50
+
4
−
1
C
50
=
53
C
50
=
53
C
3
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