Question

find the principal value of sin inverse 1÷2​

Answer 1

Explanation: "inverse sine" may refer to either a single values function (the principal value -- common in introductory courses) or to a "multivalued function". We know that sin(π6)=12 and so, sin(−π6)=−12 . Therefore, the (principal) inverse sine of −12 is −π6 .