Answer:
The horizontal line test may be used to determine whether a function is one-to-one.
The vertical line test may be used to determine whether a relation is a function.
Step-by-step explanation:
no it isn't. 2cos(x) is 2 multiplied by cos(x), cos (2x) is cos(2 multiplied by x) meaning 2x is the angle you're taking the cosine of. if you want to know what cos(2x) look up the double angle rule.
Answer:
All real number greater than equal to zero.
Step-by-step explanation:
The function is given by
The domain is defined as the input values so that the function is well defined.
here, the values of x should be all real number and zero also.
So, the correct option is (d).
Answer:
Weight=2.835
Step-by-step explanation:
See the attached picture for explanation.
Answer:
2 ,-1 -2
Step-by-step explanation: