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Anonymous:
Dear friend , √64= +8 not -8 as this is different from x^2 = 64 where x = +8 or -8 .
According to the answer graph of y^2 = x is same as y = √x but this is not at all possible for x,y belongs to real number .
Answers
Answered by
95
HEY , HERE'S THE ANSWER ⏬
Rational numbers : Rational numbers can be written in the form of p/q , where q is not equal to zero and p and q are co-prime.
According to the question ,
√64/√49 = +-8/+-7 and here , 7 is not equal to zero and 7 and 8 are co prime.
==> √64/√49 is a rational number
==> Option E) is the correct answer.
HOPE IT HELPS YOU !!!
⏺️For more details ⏬
◆ Options other than this contains root numbers . Hence , the numbers can't be rational .
● For example - √5/√25 can be written as √5/+-5. But √5 is irrational .So, irrational / rational is equal to irrational .
● With the same way - √π is irrational .
● Again - √7 is irrational as it is not a perfect square.
HENCE , ALL THE NUMBERS ARE IRRATIONAL EXPECT OPTION (E)
-------------------------------------
Rational numbers : Rational numbers can be written in the form of p/q , where q is not equal to zero and p and q are co-prime.
According to the question ,
√64/√49 = +-8/+-7 and here , 7 is not equal to zero and 7 and 8 are co prime.
==> √64/√49 is a rational number
==> Option E) is the correct answer.
HOPE IT HELPS YOU !!!
⏺️For more details ⏬
◆ Options other than this contains root numbers . Hence , the numbers can't be rational .
● For example - √5/√25 can be written as √5/+-5. But √5 is irrational .So, irrational / rational is equal to irrational .
● With the same way - √π is irrational .
● Again - √7 is irrational as it is not a perfect square.
HENCE , ALL THE NUMBERS ARE IRRATIONAL EXPECT OPTION (E)
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THANKS
BHAIYA
Ok
who is bhaiya.?
SOCIAL
SORRY
its okay . and I am a girl..
ok
BTW Wlcm
ok
Answered by
133
Hey there!
In the above, √64/49 is a rational number because,
√64/49 = √( ±8 / ±7 )²= ± (8/7)
Rest others can be proved as irrational by contradiction method.
Correct answer -> E
Hope helped!
======================
For more details :-
1) Proof of √5/25 as irrational number by me :
brainly.in/question/2892087
2) Proof of √7 as irrational number by me : brainly.in/question/2892045
3) Proof of √2 as irrational number : brainly.in/question/2891974
4) Regarding √π , pi itself is a irrational number. Root of irrational number is irrational.
In the above, √64/49 is a rational number because,
√64/49 = √( ±8 / ±7 )²= ± (8/7)
Rest others can be proved as irrational by contradiction method.
Correct answer -> E
Hope helped!
======================
For more details :-
1) Proof of √5/25 as irrational number by me :
brainly.in/question/2892087
2) Proof of √7 as irrational number by me : brainly.in/question/2892045
3) Proof of √2 as irrational number : brainly.in/question/2891974
4) Regarding √π , pi itself is a irrational number. Root of irrational number is irrational.
Yep , Anny I think you understood
Please sorry yashvi , really sorry !!!!
yes now i understood
please a i have board exam tomorrow
now stop comments here
ok
By convention. -8 is also a valid square root of 64, and when you're solving an equation like x2 = 64, there will be two solutions for that reason. But when you're asked for 'the' square root of a number, the positive one is what they mean.
okay ... understandable
good
itnalamba
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