tell me this answer
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Answer:
270725
Step-by-step explanation:
47
C
4
+∑
j=1
5
(52−j)C
3
⇒
47
C
4
=178365
⇒∑
j=1
5
(52−j)C
3
=
51
C
3
+
50
C
3
+
49
C
3
+
48
C
3
+
47
C
3
=92360
⇒
47
C
4
+∑
j=1
5
(52−j)C
3
=178365+92360
=270725
=
52
C
3
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