Highly selective Backlog Qs for JEE MainMathematicsSequences and Series
If , , [0, ] and if , , are in AP, then - - is equal to
Options
- A2
Correct answer
2
Step-by-step solution
- - = 2 + 2 - 2 2 + 2 - 2 = + 2 [ array l A- B=2 ( A+B 2 ) ( A-B 2 ) and A- B=2 ( A+B 2 ) ( B-A 2 ) array ] But , , are in AP + 2 = So, required value is .