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If cos e c^(-1)(cos e cx)a n dcos e c(co...

If `cos e c^(-1)(cos e cx)a n dcos e c(cos e c^(-1)x)` are equal functions, then the maximum range of value of `x` is `[-pi/2,-1]uu[1,pi/2]` (b) `[-pi/2,0]uu[0,pi/2]` `(-oo,-1)uu[1,oo]` (d) `[-1,0]uu[0,1]`

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If cos e c^(-1)(cos e cx) and cos e c(cos e c^(-1)x) are equal functions, then the maximum range of value of x is (a) [-pi/2,-1]uu[1,pi/2] (b) [-pi/2,0]uu[0,pi/2] (c) (-oo,-1)uu[1,oo] (d) [-1,0]uu[0,1]

If cos e c^(-1)x+cos e c^(-1)y+cos e c^(-1)z=-(3pi)/2, find the value of x/y+y/z+z/xdot

If (log)_3(x^2-6x+11)lt=1, then the exhaustive range of values of x is: (a) (-oo,2)uu(4,oo) (b) (2,4) (c) (-oo,1)uu(1,3)uu(4,oo) (d) none of these

For x^2-(a+3)|x|=4=0 to have real solutions, the range of a is a (-oo,-7]uu[1,oo) b (-3,oo) c (-oo,-7] d [1,oo)

For x^2-(a+3)|x|-4=0 to have real solutions, the range of a is a) (-oo,-7]uu[1,oo) b) (-3,oo) c) (-oo,-7] d) [1,oo)

For x^2-(a+3)|x|+4=0 to have real solutions, the range of a is a. (-oo,-7]uu[1,oo) b. (-3,oo) c. (-oo,-7) d. [1,oo)

Let A (0,2),B and C be points on parabola y^(2)+x +4 such that /_CBA (pi)/(2) . Then the range of ordinate of C is (a) (-oo,0)uu (4,oo) (b) (-oo,0] uu[4,oo) (c) [0,4] (d) (-oo,0)uu [4,oo)

Complete solution set of the inequation (x^2-1)(x^2-6x+8)geq0 is (a) x in [-1,1]uu[2,4] (b) x in (-oo,-1)uu[1,2]uu[4,oo] (c) x in [-1,2]uu[4,oo] (d) none of these

If f:R->R where f(x) = ax + cosx is an invertible function, then (a).(-2, -1]uu [1,2) ; (b).[-1,1] ; (c).(-oo, -1]uu [1,oo) ; (d).(-oo, -2]uu [2,oo) .

If f(x)=cos^(-1)((2x^2+1)/(x^2+1)), then rang of f(x) is [0,pi] (2) (0,pi/4] (0,pi/3] (4) [0,pi/2)

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