MathematicsEasy98×since 2002Q4831∑k=0651−kC3\sum\limits_{k = 0}^6 {{}^{51 - k}{C_3}}k=0∑651−kC3 is equal to :A51C4−45C4\mathrm{{}^{51}{C_4} - {}^{45}{C_4}}51C4−45C4B51C3−45C3\mathrm{{}^{51}{C_3} - {}^{45}{C_3}}51C3−45C3C52C3−45C3\mathrm{{}^{52}{C_3} - {}^{45}{C_3}}52C3−45C3D52C4−45C4\mathrm{{}^{52}{C_4} - {}^{45}{C_4}}52C4−45C4Check answerSkip