(7) Prove the following identity: (+1) - C+1) • (-1) (": ") (-1)

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(7) Prove the following identity: (+1) - C+1) • (-1) (: ) (-1)

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Q7 prove that 0:1) =(:) - (2.)+(+ (!) broof. that know we - (mt + ( A l-1 Now mu) 6 ::). (C.) (0) () 17:)+ (.)-1(0)-(2) Kt) b I tu -(1)-1(2.). (7) winy mt, = (17.)( K resiny o m + 2 ) kt) Hence prove d.

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(7) Prove the following identity: (+1) - C+1) • (-1) (": ") (-1)

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(7) Prove the following identity: (+1) - C+1) • (-1) (": ") (-1)

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