Sum of the squares of 3 no.'s is 62 and the sum of their products taken two at a time is 131. Find the sum?
Choose the correct choice from the following options:
A) 20	B) 24	C) 26	D) 18	E) 30
(a + b + c)2 = a2 + b2 + c2 + 2(ab +bc + ca) = 62 + 2* 131   a + b + c = √324 = 18   18
<result>D</result>
Sum of the squares of 3 no.'s is 62 and the sum of their products taken two at a time is 131. Find the sum?