`4/10, 7/10, 2/10, 1/10` Add these

1,9/10,8/10,7/10 Add these

1/4+2/4 3/10+2/10+1/10

7/10-x=3/10

1/10,6/10,9/10,5/10,8/10,2/10

The equation of the ellipse with focus (-1,1) directrix x-y+3=0 and eccentricity is a. 7x^2+2x y+7y^2+10 x+10 y+7=0 b. 7x^2+2x y+7y^2+10 x-10 y+7=0 c. 7x^2+2x y+7y^2+10 x-10 y+7=0 d. None of these

The mean deviation of the data 3,10,10,4,7,10,5 from the mean is

The mean deviation of the data 3,10,10,4,7,10,5 from the mean is

If (10)^9 + 2(11)^1 (10)^8 + 3(11)^2 (10)^7+...........+10 (11)^9= k (10)^9 , then k is equal to :

State with reason whether following functions have inverse (i) f:{1,2,3,4} ->{10} " with " f={(1, 10),(2, 10),(3, 10),(4, 10)} (ii) g:{5, 6, 7, 8}->{1,2,3,4}" with "g={(5, 4),(6, 3),(7, 4),(8, 2)} (iii) h : {2, 3, 4, 5} → {7, 9, 11, 13}" with "h = {(2, 7), (3, 9), (4, 11), (5, 13)}

If A=|[3, 10],[ 2, 7]|, then write A^(-1)