The value of cos^2 10^0-cos10^0cos50^0+cos^2 50^0 is equal to

The value of 16cos 10^(@) cos30^(@) cos50^(@)cos70^(@) "is"

The value of cos e c10^0+cos e c50^0-cos e c70^0 is ____

Find the value of cos12^0+cos84^0+cos156^0+cos132^0

Find the value of (cot25^0+cot55^0)/(tan25^0+tan55^0)+(cot55^0+cot100^0)/(tan55^0+tan100^0)+(cot100^0+cot25^0)/(tan100^0+tan25^0)

Fill in the blanks : The value of cot 0^(@) is not _____________.

Find the sign of the values of tan113^0-cos107^0=a and tan107^0-cos105^0=b

Column I Column II The value of ((4+sec20^0)/(cosec20^0))^2 , is p. 1 The minimum value of (1+cos2x+8sin^2x)/(2sin2x),x(0,pi/2) is q. 2 The value of (8sin40^0dotsin50^0dottan10^0)/(cos80^0) r. 3 If (cos5A)/(cosA)+(sin5A)/(sinA)=a+bcos4A , then (a^2)/b is s. 4

If tan 42^(@) =0.9 , then find the value of cot 492^(@) .