Prove that the sum of three consecutive exponents of the number 2 is divisible by 14.

So you want to prove . Notice that for , we have

If , we have

and we know , so will always be a multiple of 14 and we're done.

m∠abd = m∠dbc

step-by-step explanation:

given : ab bisects ∠dbc

as we know that bisection means ab divides   ∠dbc   in two equal angles named as   ∠dba and   ∠abc

so, m∠abd = m∠dbc  

because ab bisects ∠dbc.

hence , the first statement m∠abd = m∠dbc is true.