Crazy Limits

Calculus Level 2

Evaluate the following :

lim ⁡ x → 0 ( 1 − cos ⁡ x cos ⁡ 2 x ) x 2 \displaystyle \lim_{x\to 0}\frac{(1-\cos x \sqrt{\cos 2x})}{x^2}

Details and Assumptions

Enter your answer in decimal form. For example, if your answer is 1 10 \frac{1}{10} , enter it as 0.1 0.1


The answer is 1.5.

Prasun Biswas by Prasun Biswas , 23, India

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2 solutions

Mas Mus
Apr 10, 2014

using L" hopitals rule

0 Helpful 0 Interesting 0 Brilliant 0 Confused

using L" hopitals rule

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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