Question

Please give right answer​

Answer 1

Answer:

b. ) 1

Step-by-step explanation:

hope you will understood

Answer 2

Answer:

HCF = 1

Step-by-step explanation:

There are so many ways to solve problems. I am using mine.

Let's substitute n as 2 , 3 , 4 and let's observe

( i ) A = 2n + 13 = 2 ( 2 ) + 13 = 4 + 13 = 16 = 2 * 2 * 2 * 2 * 1

     B = n + 7 = 2 + 7                           = 9  = 3 * 3 * 1

HCF in this case is 1

( ii ) A = 2n + 13 = 2 ( 3 ) + 13 = 6 + 13 = 20 = 2 * 2 * 5

      B = n + 7    = 3 + 7                        = 10 = 2 * 5

HCF in this case are 1 , 2 , 5 , 10

( iii ) A = 2n + 13 = 2 ( 4 ) + 13 = 8 + 13 = 21 = 7 * 3 * 1

       B = n + 7     = 4 + 7                       = 11 * 1

HCF in this case is 1

Now, let's the all the HCFs and find the common which is our answer

( i ) 1

( ii ) 1 , 2 , 5 , 10

( iii ) 1

The common HCF in these solutions is 1

So, we can say that HCF of A , B = 1

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