![The expression √25+2(√35-√65-√91)](https://www.gkseries.com/blog/wp-content/uploads/2024/04/The-expression-√252√35-√65-√91.jpg)
The expression
![](https://www.gkseries.com/blog/wp-content/uploads/2024/04/image-259-1024x188.png)
is equal to
(a) – –
(b) – +
(c) – –
(d) ( + – )
Sol:
As we know
(a + b + c)² = a² + b² + c² + 2(ab + bc + ca)
![](https://www.gkseries.com/blog/wp-content/uploads/2024/04/image-260-1024x398.png)
The expression
is equal to
(a) – –
(b) – +
(c) – –
(d) ( + – )
Sol:
As we know
(a + b + c)² = a² + b² + c² + 2(ab + bc + ca)
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