Question

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

Answer 1

Answer:

2cot(35*+¤)

Step-by-step explanation:

formula used

cosec(90*-¤)=sec¤

tan(90*-¤)=cot¤

Answer 2

Answer:

Step-by-step explanation:

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