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Solve this without completely using the L’Hospital Rule.

Solve this without completely using the L’Hospital Rule.

Question Image
Grade:12

2 Answers

Arun
25763 Points
2 years ago
Dear student
 
ise the formula of cos C – cos D
 
2 sin (x + sin x)/2 *  sin (x- sinx)/2 / x^4
 
now multiply and divide by (x+ sinx)/2 and  (x – sinx)/2 to make it in yhe form of sin (f(x)) /f(x) where f(x) tends to zero.
 
hope it helps
in case of any difficulty please feel free to ask.
Rithvik
46 Points
2 years ago
It is very simple dear.
use the formula of cos C – cos D
 
2 sin (x + sin x)/2 *  sin (x- sinx)/2 / x^4
 
now multiply and divide by (x+ sinx)/2 and  (x – sinx)/2 to make it in yhe form of sin (f(x)) /f(x) where f(x) tends to zero.
 
If u cant get the answer ask me again.
 

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