If 189 C35-189 Cr-190 Cr- then r-

Given : nbsp;189C35 nbsp;+ nbsp;189Cr nbsp;= nbsp;190Cr nbsp; Using nCr + nCr+1 = n+1Cr+1 nbsp; rArr; n = 89 and r = 36 ...

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Patterns in Everyday Life

If 189 C35+18...

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If ¹⁸⁹C₃₅ + ¹⁸⁹C_r = ¹⁹⁰C_r, then r = ____________.

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