given a is equal to 60 degree and b is equal to 30 degree prove that sin a + b is equal to sin a cos b + cos a sin b ​

Explain why the function is discontinuous at the given number a. (select all that apply.) f(x) = 1 x + 1 a = −1 f(−1) is undefined. lim x→−1+ f(x) and lim x→−1− f(x) exist, but are not equal. lim x→−1 f(x) does not exist. f(−1) and lim x→−1 f(x) exist, but are not equal. none of the above

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin. how many doctors use brand x aspirin

Using graph paper, determine the line described by the given point and slope. click to show the correct graph below.(0, 0) and 2/3