Question 757165
To evaluate sinA = 0.7071 we realize that we are looking for the angle A in radians or in degrees. You will get different answers depending on the angle mode that your calculator is working in: degrees or radians.

In Degrees:
{{{sinA = 0.7071}}}  Take the sine inverse of both sides
{{{sin^-1(sinA) = sin^-1(0.7071)}}}
{{{A = sin^-1(0.7071)}}}
A = 44.9995 degrees

In Radians:
{{{sinA = 0.7071}}}  Take the sine inverse of both sides
{{{sin^-1(sinA) = sin^-1(0.7071)}}}
{{{A = sin^-1(0.7071)}}}
A = 0.7854 radians