If the maximum and minimum values of `y=(x^2-3x+c)/(x^2+3x+c)` are 7 and `1/7` respectively then the value of c is equal to (A) 3 (B) 4 (C) 5 (D) 6

If the maximum and minimum value of sin sin x is a and b respectively and the maximum and minimum value of cos cos x is c and d respectively then a^(2)+b^(2)+c^(2)+d^(2):(A)1+a^(2)(B)2+a^(2)(C)3+a^(2)(D)4+a^(2)

If x^2 + frac(1)(x^2) =7 , then the values of x + frac(1)(x) is (A) 2 (B) 3 (C ) 5 (D) 6

The minimum value of |x-3|+|x-2|+|x-5| is (A) 3 (B) 7 (C) 5 (D) 9

The minimum value of |x-3|+|x-2|+|x-5| is (A) 3 (B) 7 (C) 5 (D) 9

If 2x+y=5 and 3x-4y=2, then the value of 2xy is (a) 4 (b) 6 (c) 8 (d) 10

If y=(x^2-3x+1)/(2x^2-3x+2) , where x is real, the value of y lies between (A) -1leyle5/7 (B) -1/2leyle5/7 (C) 5/7ltylt1 (D) none of these

If y=(x^2-3x+1)/(2x^2-3x+2) , where x is real, the value of y lies between (A) -1leyle5/7 (B) -1/2leyle5/7 (C) 5/7ltylt1 (D) none of these

The maximum and minimum values of the function |sin 4x+3| are....respectively. a) 1,2 b) 4,2 c) 2,4 d) -1,1

If x=(7+5sqrt(2))^(1/3) -1/((7+5sqrt(2))^(1/3) , then the value of x^3+3x-14 is equal to 1 (b) 0 (c) 2 (d) 4

The minimum value of f(x) =|(3-x)| + 7 is a)0 b)6 c)7 d)8