Limit of a Function

Q. For the following function shown, the value of
$\underset{x\to 0}{\lim }y=0$

1. False
2. True

Q. When x tends to 1, 2x+1 tends to

1. 2
2. 1
3. 3
4. 1.5

Q. The value $\underset{\theta \to 0}{\lim }\frac{\tan \left(\theta \right)}{\theta }$ is

1. -1
2. \N
3. 1
4. 2

Q. When x tends to 0, cos(x) tends to ___

1. 1
2. \N
3. 90 deg.
4. 45 deg.

Q. For the following function shown, the value of
$\underset{x\to 0}{\lim }y=0$

1. False
2. True

Q. When x tends to 0, sin(x) tends to ___

1. 1
2. \N
3. 90 deg
4. 45 deg