Question

Show that 5/3 - 7√2 is an irrational number given that √2 is an irrational number.

Answer 1

Step-by-step explanation:

ਧੁਰੇ ਤੇ ਸਥਿੱਤ ਕਿਸੇ ਬਿੰਦੂ ਦਾ ਕੋਟੀ ਕਿੰਨ੍ਹਾਂ ਹੋਵੇਗਾ?

Answer 2

Answer:

When √2 is irrational, then 7√2 is also irrational because Rational number × Irrational number = irrational in this case

Now, 5/3 - 7√2 is Irrational because Rational-irrational = irrational