The value of tan A is :

1. $\dfrac{5}{12}$

2. $\dfrac{12}{13}$

3. $\dfrac{5}{13}$

4. $\dfrac{13}{12}$

The value of sin B - cos A is;

1. $\dfrac{1}{2}$

2. 1

3. 0

4. none of these

The value of sin 23° - cos 67° is :

1. 1

2. 0

3. cos 44°

4. -cos 44°

Statement 1: The angle C of a right angled triangle is 90°, then tan A = cot B.

Statement 2: Since, angle C of triangle ABC = 90°.

∴ ∠A + ∠B = 90° ⇒ ∠A = 90° - ∠B

1. Both the statements are true.

2. Both the statements are false.

3. Statement 1 is true, and statement 2 is false.

4. Statement 1 is false, and statement 2 is true.