Q7, Q8 exercise- 1.1

Q5 exercise- 2.1

Q4 exercise- 2.1

Q7, exercise- 2.1

Q6, exercise- 2.1

Q1 exercise- 2.1 part - 1

Q1 exercise- 2.1 part - 1

Q1 exercise- 2.1 part - 2

If the distance from the point P(1, 1, 1) to the line passing through the points Q(0, 6, 8) andR(-1, 4, 7) is expressed in the form sqrt((p)/(q)) , where p and q are co-prime, then the value of ((q+p)(p+q-1))/(2) is equal to

Find the value of x such that P Q=Q R where the coordinates of P ,\ Q and R are (6,\ -1) , (1,\ 3) and (x ,\ 8) respectively.