x का मान ज्ञात कीजिए, यदि(i) `|2 4 5 1|-|2x4 6x|` (ii) `|2 3 4 5|-|x3 2x5|`

dy/dx का मान ज्ञात कीजिए यदि x=2at,y=at^2

Evalute the determinants in queations 1 and 2 : Find the values of x, if (i) |{:(2,4),(5,1):}|=|{:(2x,4),(6,x):}| (ii) |{:(2,3),(4,5):}|=|{:(x,3),(2x,5):}|

Find the value of X and Y (X और Y का मान ज्ञात कीजिए) I. 2x^(2)-5x-3=0 II. 4y^(2)+16y+15=0

Solve for x (i) |x+1|=4x+3 (ii) |x+1|=|x+3| (iii) 7|x-2|-|x-7|=5 (iv) ||x-1|-2|=6x+8 (v) |2x^(2)-3x+1|=|x^(2)+x-3|

Find the value of X and Y (X और Y का मान ज्ञात कीजिए) I. 2x+3y=14 II. 4x+2y=16

Find the value of X and Y (X और Y का मान ज्ञात कीजिए) I. x^(2)-14x+48=0 II. y^(2)+6=5y

simplify: (i) 2p^(3) - 3p^(2) + 4p - 5- 6p^(3) + 2p^(2) - 8p - 2 + 6p + 8 (ii) 2x^(2) - xy + 6x - 4y + 5xy - 4x + 6x^(2) + 3y (iii) x^(4) - 6x^(3) + 2x - 7 + 7x^(3) - x + 5x^(2) + 2 - x^(4)

Find each of the following products: (i) (x + 3) (x - 3) (ii) (2x + 5)(2x - 5) (ii) (8 + x)(8 - x) (iv) (7x + 11y) (7x - 11y) (v) (5x^(2) + (3)/(4) y^(2)) (5x^(2) - (3)/(4) y^(2)) (vi) ((4x)/(5) - (5y)/(3)) ((4x)/(5) + (5y)/(3)) (vii) (x + (1)/(x)) (x - (1)/(x)) (viii) ((1)/(x) + (1)/(y)) ((1)/(x) - (1)/(y)) (ix) (2a + (3)/(b)) (2a - (3)/(b))

Divide: (i) 6x^(5) + 18 x^(4) - 3x^(2) by 3x^(2) (ii) 20 x^(3) y + 12 x^(2) y^(2) - 10 xy by 2xy