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Asked by prasun bairagi 4th August 2012, 2:41 PM
Answered by Expert
Answer:
We would request you to please ask one question at a time. The solution to your first question is as follows:
 
 
We know that the value of sin a and cos a lies between 0 and 1.
So, we have:
Answered by Expert 6th August 2012, 10:40 PM
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