Question

If cot theta is 20/21 then the value of cosec theta is

Answer 1

Answer:

cot theta=20/21, cosec theta =?

By formula,

cosec²theta- cot²theta=1

Put the value of cot theta in it,

cosec²theta-(20/21)²=1

cosec²theta-400/441=1

cosec²theta=1+400/441

cosec²theta=(441+400)/441

cosec ²theta=841/441

cosec theta=√(841/441)=√(29/21)²

cosec theta=29/21

Step-by-step explanation: