Why is it if you entered in the calculator 2 in second function of sine, it's answer was error?Is it the same for cosine=2 and tangent=2?

Assuming that the second function of sine is the arcsine (inverse of the sine function, often written as sin^-1 even though it is not equal to 1/sin), then it gives an error because the value of the sine function is always between -1 and 1. The same is true of cosine, but not tangent. The tangent can have any real number for its value.