Question

If f(x)=3sin(x)+2 then f(45*)=?

the * is degrees

Answer 1

f(45°) = 3 * sin(45°) + 2

Using the sine function in degrees, sin(45°) = 1/√2. So:

f(45°) = 3 * (1/√2) + 2

f(45°) = (3 * 1/√2) + 2

f(45°) = (3/√2) + 2

f(45°) = (3/√2) + 2

f(45°) = (3 * √2)/√2 + 2

f(45°) = 3 * √2 + 2

f(45°) = 3 * √2 + 2

f(45°) = 3√2 + 2

So f(45°) = 3√2 + 2 = approximately 4.7.