a²+b²=99,ab=9 find the value of a-b
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Answer:
Given :-
a²+b²=99,ab=9
To find :-
the value of a-b
(a- b)² = a² + b² - 2ab
= 99 -2× 9
=99 - 18
= 81
So we have (a-b)² = 81
a-b = ✓ 81 = 9
Thus the value of a- b is 9 ( REQUIRED ANSWER)
Answered by
0
Step-by-step explanation:
(a+b)^2=99
=99+2ab
=99-18
a-b=√81
a-b=9
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