![]() ![]() Usually one must avoid 0 on the fraction’s bottom and the negative values which are under the square root sign. Question 3: How can one find the domain of a function?Īnswer: One can determine the domain of each function by looking for independent variables values which one is allowed to use. The range means the set of possible output values whose representation takes place on the y-axis. The domain of a graph involves all the input values which are represented on the x-axis. ![]() Question 2: What is meant by domain and range?Īnswer: Domain means the set of possible input values. We also know that for each real number ‘x’, We know that the sine and cosine functions are defined for all real numbers. Domain and Range of Trigonometric Functions ![]()
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