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Find the value of 4C1 - 2C2...

Find the value of `4C_1 - 2C_2`

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CENGAGE ENGLISH-PERMUTATIONS AND COMBINATIONS-All Questions
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  2. The number of ways of choosing triplet (x , y ,z) such that zgtmax{x,...

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  3. Find the value of 4C1 - 2C2

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