Question

How do you find the exact value of `sin^-1(1)`?

Answer 1

Well the value of sin90`degrees`=1(.....as per the values of table)
90=`sin^-1` (1) .....(1)

Explanation:

Here,sinx=1(given)
x=`sin^-1`(1).....(2)
On comparing (1) and (2),we get,

*`rArr` x=`sin^-1`(1)=90`degrees`*......(Answer)
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I hope this helps :)