Math, asked by sweetrisha, 1 year ago

Cosec[90°(25°-theta)]-sec(25°-theta)

Answers

Answered by patel25

cosec(65+theta) -sec(25- theta) -tan(55-theta) +cot (35+theta)

=>sec[ 90-(65 +theta)] -sec(25-theta) -cot [90-(55-theta)] +cot (35+theta) since sec(90-x)=cosecx, cot(90-x) tanx

=> sec(25-theta) -sec(25-theta) -cot(35+theta)+cot(35+theta)

=>0 ans

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