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Prove the identiti :
Cosec to the power 4 A - cosec to the power 2 A = cot to the power 4 A + cot to the power 2 A

Asked by pratyakshajha.12 31st March 2015, 8:03 PM
Answered by Expert
Answer:
cos e c to the power of 4 A minus cos e c squared A equals c o t to the power of 4 A minus c o t squared A L H S comma cos e c to the power of 4 A minus cos e c squared A equals cos e c squared A left parenthesis cos e c squared A minus 1 right parenthesis equals cos e c squared A. c o t squared A equals left parenthesis 1 plus c o t squared A right parenthesis. c o t squared A equals c o t squared A plus c o t to the power of 4 A equals c o t to the power of 4 A plus c o t squared A equals R H S
Answered by Expert 1st April 2015, 10:40 AM
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