7C4 ko solve karke 35 kase aayga mera toh 70 aa raha hai
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working of 7C4 is uploaded
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angel3415:
oh great..!!
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7c4 = 7!/4!(7-4)!
= 7×6×5×4×3×2×1/ 4×3×2×1(3×2×1)
=5040/(24×6)
=5040/144
7c4=35
= 7×6×5×4×3×2×1/ 4×3×2×1(3×2×1)
=5040/(24×6)
=5040/144
7c4=35
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