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The value of 1/(2n+1)Cr + 1/(2n+1)Cr+1 is equal to A) 1/2nCr B) 1/2nCr+1 C)( 2n+2)/(2n+1) * 1/2nCr The value of 1/(2n+1)Cr + 1/(2n+1)Cr+1 is equal to A) 1/2nCr B) 1/2nCr+1 C)( 2n+2)/(2n+1) * 1/2nCr
take LCM 2n+1Cr+1 + 2n+1Cr / (2n+1)Cr (2n+1)Cr+1 = 2n+2Cr+1 / (2n+1)Cr (2n+1)Cr+1 Now open factorial sign you will get the answer in simplified form RegardsArun (askIITians forum expert)
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