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Set of value of m for which a chord of s...

Set of value of m for which a chord of slope m of the circle `x^2+y^2=4` touches parabola `y^2=4x` is (A) `(-oo , -sqrt((sqrt2 -1)/2)] uu [sqrt((sqrt2 -1)/2) , oo)` (B) `(-oo , -1) uu (1, oo )` (C) `(-1,1)` (D) `(-oo , oo)`

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Set of value of m for which a chord of slope m of the circle x^(2)+y^(2)=4 touches parabola y^(2)=4x is (A)(-oo,-sqrt((sqrt(2)-1)/(2))]uu[sqrt((sqrt(2)-1)/(2)),oo)(B)(-oo,-1)uu(1,oo)(C)(-1,1)(D)(-oo,oo)

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33. If f(x)=sqrt(x+2sqrt(2x - 4)) +sqrt(x-2sqrt(2x - 4)) then f(x) isdifferentiable on1) (-oo,oo) 2) [2,oo) - {4} 3) [2,oo) 4) (0,oo)

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The range of (x ^ (2) -2x + 3) / (x ^ (2) -2x-8) AA x in R is (i) (- oo, 0] uu [1, oo) (ii) [ (1) / (2), 2] (iii) (- oo, - (2) / (9)] uu [1, oo) (iv) (oo, -6] uu ([- 2, oo)

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If |x-2| (A) x in R , (B) x in[0,oo)] , (C) x in(-oo,(4-sqrt(2))/(2)]uu[(5)/(2),oo), (D) x in(-oo,(4-sqrt(2))/(2)]uu[(5+sqrt(3))/(2),oo]

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