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CBSE Class 12-science Answered

5C2/4C2 + 5C2
Asked by haroonrashidgkp | 31 Oct, 2018, 05:46: PM
answered-by-expert Expert Answer
begin mathsize 16px style fraction numerator straight C presuperscript 5 subscript 2 over denominator straight C presuperscript 4 subscript 2 end fraction plus straight C presuperscript 5 subscript 2 equals fraction numerator begin display style fraction numerator 5 factorial over denominator 2 factorial space 3 factorial end fraction end style over denominator begin display style fraction numerator 4 factorial over denominator 2 factorial space 2 factorial end fraction end style end fraction plus fraction numerator begin display style 5 factorial end style over denominator begin display style 2 factorial space 3 factorial end style end fraction equals fraction numerator begin display style fraction numerator 5 cross times 4 cross times 3 factorial over denominator 2 cross times 1 cross times space 3 factorial end fraction end style over denominator begin display style fraction numerator 4 cross times 3 cross times 2 factorial over denominator 2 cross times 2 factorial end fraction end style end fraction plus fraction numerator begin display style 5 cross times 4 cross times 3 factorial end style over denominator begin display style 2 cross times 1 cross times space 3 factorial end style end fraction equals 10 over 6 plus 10 equals fraction numerator 10 plus 60 over denominator 6 end fraction equals 70 over 6 equals 35 over 3 end style
Answered by Sneha shidid | 31 Oct, 2018, 06:00: PM

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CBSE 12-science - Maths
find the quadratic equations whose roots are 3 and -2
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Asked by leelasri11663 | 25 Apr, 2024, 11:34: AM
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CBSE 12-science - Maths
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CBSE 12-science - Maths
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And
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CBSE 12-science - Maths
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CBSE 12-science - Maths
question 13
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CBSE 12-science - Maths
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CBSE 12-science - Maths
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