Question

 

 Find the minimum and maximum values of 

 

Solution

Correct option is

1

 

; can be considered as a quadratic in .

         

         

Hence the expression has a minimum value 3/4. 

Also,

 maximum value = 1

SIMILAR QUESTIONS

Q1

If 0 < θ < π/2 and sin θ + cos θ + tan θ + cot θ + sec θ + cosec θ is equal to 7, then sin 2θ is a root of the equation

Q2

 then tan θ1 tan θ2 tan θ3 tan θ4 is equal to

Q3

 are in

Q4

yz + zx + xy is equal to

Q5

Value of the determinant

      

Q6

x + y + z is equal to

Q7

Find the radian measure corresponding to –37o30’.

Q8

The minute hand of a clock is 10 cm long. How far does the tip of the hand move in 20 minutes?

Q9

A rail road curve is to be laid out on a circle. What radius should be used if the track is to change direction by 25o in a distance of 40 metres?