Factories 1 4 x2-12 x-9 x2-y-x y-y

4x2 12x+9 = 4x2 6x 6x+9 = 2x(2x 3) 3(2x 3) = (2x 3)(2x 3) = (2x 3)2 x2+y xy y , Are yo ...

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Formula for Sum of n Terms of an AP

Factories 1 4...

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Factories (1) 4x² - 12x +9,
x²+y-xy-y ,

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Which of the following is a linear expression ?

a) $x^{2} \times y + x y + 1$

b) $x + y + 1$

c) $x^{3} \times y + x y + 1$

d) $4 x^{2} + 1$

x^{2} + y^{2} - 3 x + 1

4 x^{2} + 4 y^{2} - 12 x - y - 9 = 0

{s i n}^{- 1} x, {c o s}^{- 1} x, {t a n}^{- 1} x

{t a n}^{- 1} x + {t a n}^{- 1} y = {t a n}^{- 1} \frac{x + y}{1 - x y}

x y < 1

π + {t a n}^{- 1} \frac{x + y}{1 - x y}

x y > 1

3 {s i n}^{- 1} \frac{2 x}{1 + x^{2}} - 4 {c o s}^{- 1} \frac{1 - x^{2}}{1 + x^{2}} + 2 {t a n}^{- 1} \frac{2 x}{1 - x^{2}} = \frac{π}{3}

s i n [(1 / 5) {c o s}^{- 1} x] = 1

{t a n}^{- 1} \sqrt{x^{2} + x} + {s i n}^{- 1} \sqrt{x^{2} + x + 1} = \frac{π}{2}

x^{4} - 4 x^{2} + 12 x + 9

x^{2} + 2 x - 3

t a n \frac{1}{2} [s i n^{- 1} \frac{2 x}{1 + x^{2}} + c o s^{- 1} \frac{1 - y^{2}}{1 + y^{2}}]

| x | < 1, y > 0 a n d x y < 1

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