a+b=27, ab=182 value of a and b
jay273:
kaise sir please bataiye
Answers
Answered by
8
Given :-
and
From (ii) we get
Putting value of b in (i), we get
a = 13 or 14
b = 14 or 13
and
From (ii) we get
Putting value of b in (i), we get
a = 13 or 14
b = 14 or 13
Answered by
4
hey dear
here is your answer
Given
ab =182
a+b = 27
Now we use identity
( a + b) ^2 = (27)^2
a^2 + b^2 +2ab = 729
a^2 + b^2 = 729 -2ab
a^2 + b^2 = 729 - 2* 182
a^2 + b^2 = 729 -364
a^2 + b^2 = 365
a^2 + b^2 -2ab = 365 -2ab
(a^2 - b^2) = 365 * -2 * 182
a^2 -b^2 = 365 -364
a^2 - b^2 =1
a -b = ā1
a-b = +, - 1. ( 2nd equation)
a + b = 27. ( first equation)
Now solving the first and second equation we get
if we take a - b = 1
a+b = 27
a - b =1
a + b +a -b = 27 +1
2a =28
a = 14
as we similarly take a -b = -1
hence b value = 14 -1 =13
hence your answer is a =14 , b = 13
hope it helps
thank you
here is your answer
Given
ab =182
a+b = 27
Now we use identity
( a + b) ^2 = (27)^2
a^2 + b^2 +2ab = 729
a^2 + b^2 = 729 -2ab
a^2 + b^2 = 729 - 2* 182
a^2 + b^2 = 729 -364
a^2 + b^2 = 365
a^2 + b^2 -2ab = 365 -2ab
(a^2 - b^2) = 365 * -2 * 182
a^2 -b^2 = 365 -364
a^2 - b^2 =1
a -b = ā1
a-b = +, - 1. ( 2nd equation)
a + b = 27. ( first equation)
Now solving the first and second equation we get
if we take a - b = 1
a+b = 27
a - b =1
a + b +a -b = 27 +1
2a =28
a = 14
as we similarly take a -b = -1
hence b value = 14 -1 =13
hence your answer is a =14 , b = 13
hope it helps
thank you
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