The expression
is equal to
(a) – –
(b) – +
(c) – –
(d) ( + – )
Sol:
As we know
(a + b + c)² = a² + b² + c² + 2(ab + bc + ca)
- Gkseries in Quantitative aptitude
The expression √25+2(√35-√65-√91)
The expression √25+2(√35-√65-√91)
The expression
is equal to
(a) – –
(b) – +
(c) – –
(d) ( + – )
Sol:
As we know
(a + b + c)² = a² + b² + c² + 2(ab + bc + ca)
