prove that 5 + 2√7 is an irrational number,where √7 is given to be an irrational number
Share
prove that 5 + 2√7 is an irrational number,where √7 is given to be an irrational number
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
Yes 5+2root7 is an irrational
Step-by-step explanation:
Let us assume 5+root7 as rational number
where 5+root7 = a/b
then, root7 = a/b-5
root7 = a-5b/b
but we know that root7 as irrational so,
our assumption is wrong
therefore, 5+root7 is an irrational number