How do you find the domain for f(x)= 2sinx-3? Precalculus Functions Defined and Notation Domain 1 Answer Karthik G Jan 8, 2016 (-oo,oo) as sin(x) is defined over all real numbers. Explanation: The domain of f(x) = 2sin(x)-3 is same as that of sin(x) The domain of sin(x) is (-oo,oo) Answer link Related questions What is the domain of a function? What are common mistakes students make when working with domain? How does the domain of a function relate to its x-values? What is the domain of a linear function? What is the domain of a quadratic function? What is the domain of a function like f(x) = 5x^2? What is the domain of f(x) = {(1, 2), (3, 4), (5, 6), (7, 8), (9, 10), (10, 10)}? What is the domain of f(x) = x? How do I find the domain of the function f(x) = 2x? How do I find the domain of the function f(x)=5x^2+2x-1? See all questions in Domain Impact of this question 2855 views around the world You can reuse this answer Creative Commons License