1.

Find the principle value of the followingcosec^(-1)(2)

Answer»

SOLUTION :We KNOW `SIN (pi/6)=1/2 RARR cosec (pi/6)=2` and `pi/6 in [-pi/2,pi/2]-{0}`
`therefore` The principal value of `cosec^(-1)(2)=pi/6`


Discussion

No Comment Found

Related InterviewSolutions