sec (65° +theta) - Cosec (25° - theta)
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1___sec(65°+theta)-cosec(25°-theta)
cosec(90-(65°+theta)-cosec(25°-theta)
cosec(25°-theta)-cosec(25°-theta)
=0
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sec ( 65 + theta ) = cosec ( 90-65+theta) = cosec (25 - theta) = tan (55 - theta) = cot (90-(55-theta) = cot (35 + theta)= sec (25- theta) - sec (25- theta) tan (55- theta)+ tan(55- theta) = 0
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