The expression sin^-1(4/5) has and infinite number of values. True or false?

It is indeed false.

is a function that takes values of between -1 and 1, and takes on values between -π/2 and π/2. Most importantly, it's a function that takes *one* value in its domain and assigns it to exactly *one* value in its range. Hence is one-to-one.

It's true that has infinitely many solutions, but itself is not one-to-one.

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1