15quad " (ii) "1+4+7+10+...+x=590

Solve: 1+4+7+10+...+x=590.

Find the value of 'x' if (i) 1+6+11+...+x=189 (ii) 1+1+4+7+10+...+x=287

Solve: 1+4+7+10++x=590

1 + 4 + 7 + 10 + … + x = 590, then the value of x is

1- (1) / (5) + (1.4) / (5.10) - (1.4.7) / (5.10.15) + ... oo =

Find the standard deviation for the following data: (i) x : , 3, 8, 13, 18, 23 f: , 7, 10, 15, 10, 6 (ii) x : , 2, 3, 4, 5, 6, 7, 7 f: , 4, 9, 16, 14, 11, 6, 6

Find the standard deviation for the following data: (i) x : , 3, 8, 13, 18, 23 f: , 7, 10, 15, 10, 6 (ii) x : , 2, 3, 4, 5, 6, 7, 7 f: , 4, 9, 16, 14, 11, 6, 6

Evaluate the following with respect to x. (i) int (4x + 5)^6 dx " " (ii) int sqrt((15 - 2x))dx " " (iii) int 1/((3x + 7)^4) dx .

If y = tan ^ (- 1) ((1) / (1 + x + x ^ (2))) + tan ^ (- 1) ((1) / (x ^ (2) + 3x + 3)) + tan ^ (- 1) ((1) / (x ^ (2) + 5x + 7)) then y '(0) = (i) - (3) / (10) (ii) - (5) / (10) (iii) - (7) / (10) (iv) - (9) / (10)