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The 1- If A is directly proportional to C and B is directly proportional to c, prove that each of following is directly proportional to c a)A+B b)A-B |
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Answer» 8p + 5 12 p + 25 6 p+ 125 1
=8p 3 + 125 1 + 5 6 p(2P+ 5 1 ) =(2p) 3 +( 5 1 ) 3 +3(2p)( 5 1 )(2p+ 5 1 )[(a+B) 3 =a 3 +b 3 +3ab(a+b)] =(2p+ 5 1 ) 3
=(2p+ 5 1 )(2p+ 5 1 )(2p+ 5 1
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