## HelpMe94 3 years ago How to simplify (see attachment)

1. HelpMe94

2. HelpMe94

For Tan how is the step go from 3 to 4

3. HelpMe94

|dw:1351961306422:dw|

4. HelpMe94

|dw:1351961361189:dw| Now What

5. Aperogalics

@HelpMe94 take lcm in denominator and numerator :)

6. Aperogalics

lcm=lowest common multiple:)

7. HelpMe94

it multiplies 3 to the one?

8. Aperogalics

|dw:1351962341468:dw| :)

9. HelpMe94

if so how do they get it to multiply with another |dw:1351962502073:dw|

10. Aperogalics

to rationalize the denominator :)

11. Aperogalics

as we want a simple understandable term which we are not getting from it we know that square root of 3 can only be removed when it get squared so we use (a+b)*(a-b)=a^2-b^2:)

12. HelpMe94

@Aperogalics |dw:1351963946090:dw|

13. HelpMe94

|dw:1351964048523:dw| is this it?

14. Aperogalics

|dw:1351964016084:dw| rationalization is generally done of denominator but in some special case rtionalization is done of numerator also:)

15. HelpMe94

ok thanks