The sum of two numbers is −43. If one of the number is -5. what is the other ?
(a) −113
(b) 113
(c) −193
(d) 193
Sum of two numbers = −43
One number = 5
∴ Second number = −43−(−5)
=−43+51=−4+153=113
The sum of two rational numbers is -3. If one of the them is −103 then the other one is
(a) −133
(b) −193
(c) 13
(d) 133
If a and b are rational numbers, find 'a' and 'b' when
√7−2√7+2=a√7+b