plz help with this questiqan
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narwalnitesh49:
i can help
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as (cosecA +sinA)(cosecA - sinA)
will be equal to
cosec^2a-sin^2a
as cosec^2a=1+cot^2A
and sin^2a=1-cos^2a.
if you put these values into the equation you will get
1+cot^2A-1 + cos^2a.
if you solve this you will get your answer
will be equal to
cosec^2a-sin^2a
as cosec^2a=1+cot^2A
and sin^2a=1-cos^2a.
if you put these values into the equation you will get
1+cot^2A-1 + cos^2a.
if you solve this you will get your answer
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