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9 months ago

Arun
22615 Points
```							Dear student Squaring on both the sides 2x +1 - 2x +1 - 2sqrt (4x²-1) = 1 sqrt (4x -1) = 1/2  Hope it helps RegardsArun
```
9 months ago
mahima pareek
20 Points
```							ArunI think you made a mistake while squaring it in the third stepKindly check again. It is (a-b)^2 = a^2 + b^2 -2abAnd you wrote instead(a - b)^2 = a^2 - b^2 - 2ab
```
9 months ago
Arun
22615 Points
```							Dear Mahima I have used this as  sqrt (1- 2x) and sqrt(2x-1) , theirs square are same hence I have use that term
```
9 months ago
mahima pareek
20 Points
```							Please Arun refer back to the question It is √2x+1 - √2x-1 = 1Squaring it , we would get        2x+1 + 2x-1 - √4x^2-1 = 1 God knows how you cancelled 2x from the above eqn when both are of plus sign.
```
9 months ago
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### Course Features

• 731 Video Lectures
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• Mind Map
• Study Planner
• NCERT Solutions
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• Test paper with Video Solution

### Course Features

• 731 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions