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Prove by induction that 7 + 11 + 15 + … + (4n + 3) =...

Prove by induction that 7 + 11 + 15 + … + (4n + 3) = ( n ) ( 2n + 5 )

Prove by induction that 1 + 5 + 25 + … + 5n-1 = ( 1/4 )( 5n – 1 )

Prove by strong induction that an = 3 an-1 + 5 an-2 is even with a0 = 2 and a1 = 4.

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