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If A, B, C are real numbers such that
(A - 2)2 + (B - 8)2 + (C - 6)2 = 0
then A + B + C is
a. 0
b. 16
c. -16
d. not determinable from the information given
e. 104
Read Solution (Total 14)
-
- ans is 16
explanation :
2A-4+2B-16+2C-12=0
2(A+B+C)=32
so, (A+B+C)=16 - 11 years agoHelpfull: Yes(21) No(1)
- ANS 16
2(A+B+C-16)=0
A+B+C-16=0
A+B+C=16 - 11 years agoHelpfull: Yes(5) No(0)
- A = 2 makes (A-2) = 0
B = 8 makes (B-8) = 0
C = 6 makes (C-6) = 0
A+B+C = 2 + 8 + 6 = 16 (Answer) - 11 years agoHelpfull: Yes(5) No(0)
- ans:16
(a-2)+(b-8)+(c-6)=(0/2)
a+b+c-16=0
a+b+c=16 - 11 years agoHelpfull: Yes(3) No(0)
- 2A-4+2B-16+2C-12=0
2(A+B+C)=32
so, (A+B+C)=16 - 11 years agoHelpfull: Yes(2) No(0)
- 2a+2b+2c=32
a+b+c=16 - 11 years agoHelpfull: Yes(1) No(0)
- so they are separately zero ans is 16
- 11 years agoHelpfull: Yes(1) No(0)
- ans is 16........
- 11 years agoHelpfull: Yes(1) No(0)
- (A - 2)2 + (B - 8)2 + (C - 6)2 = 0
2A-4+2B-16+2C-12=0
2(A+B+C)=32
A+B+C=16........ Choice B - 11 years agoHelpfull: Yes(1) No(0)
- ans is 16....
- 11 years agoHelpfull: Yes(1) No(0)
- 16
dividing the equation by 2 we get,
A-2+B-8+C-6=0
=>A+B+C=16 - 11 years agoHelpfull: Yes(1) No(0)
- 2a-4=0; a=4;2b-16=0; b=8; 2c-12=0; c=6; a+b+c=2+8+6 =16
- 11 years agoHelpfull: Yes(1) No(0)
- d) not determinable from the info given
let us consider A,B,C==0;
then A+B+C=0 so option--A) is also possible
if we take A,B,C==2,8,6;
then A+B+c=16;
so we r getting different solution
so the answer is d) not determinable from the info given - 11 years agoHelpfull: Yes(0) No(14)
- 16
2A-4+2B-16+2C-12=0
2(A+B+C)=32
therefore, (A+B+C)=16 - 11 years agoHelpfull: Yes(0) No(0)
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