Functions Question 691
Question: $ \underset{x\to 0}{\mathop{\lim }},\frac{1-\cos 2x}{x}= $
[MNR 1983]
Options:
0
1
2
4
Show Answer
Answer:
Correct Answer: A
Solution:
$ \underset{x\to 0}{\mathop{\lim }},\frac{x,.,2,{{\sin }^{2}}x}{x^{2}}=2.\underset{x\to 0}{\mathop{\lim }},{{( \frac{\sin x}{x} )}^{2}}\cdot \underset{x\to 0}{\mathop{\lim }},x=0 $ .
 BETA
  BETA 
             
             
           
           
           
          