Question

show log 7 as irrational using contradiction method​

Answer 1

root 7=a/b

• add square

7 =(a/b)²

• cross multiply

7b²=a²

• again cross multiply

b²=a²/7

if a² is dividend by 7 then a is also divided 7 according to theorem

take the value for a²=7k

then

b²=(7k)²/7

cross multiply

7b²=49k²

transfer

7b² /49=k²

b²/7 =k²

b² is divided by 7 then b is also divided 7

hope it helps!!

Answer 2

Answer:

Hope it helps you......