**Video Tutorial: How to solve Quadratic Equations by Quadratic Formula?**

# Archives for October 2012

## Video Tutorial: How to solve quadratic equations by completing square?

## Circles ncert solutions Chapter 10 Exercise 10.2 Question 4

**Circles ncert solutions Chapter 10 Exercise 10.2 Question 4**

**4. Prove that the tangents drawn at the ends of diameter of a circle are parallel.**

## Circles ncert solutions Chapter 10 Exercise 10.2 Question 3

**Circles ncert solutions Chapter 10 Exercise 10.2 Question 3**

**3. If tangents PA and PB from a point P to a circle with center O are inclined to each other at angle of , then is equal to**

(A) (B) (C) (D)

## Circles ncert solutions Chapter 10 Exercise 10.2 Question 2

**Circles ncert solutions Chapter 10 Exercise 10.2 Question 2**

**2. If, TP and TQ are the two tangents to a circle with centre O so that then is equal to:**

**(A) (B) (C) (D) **