" In) "2sin45^(@)*cos45^(@)*tan45^(@)

If tan^(2) 45^(@)-cos^(2) 60^(@)=x sin 45^(@) cos45^(@) tan 60^(@) , then find the value of x.

If a sin45^(@).cos45^(@).tan60^(@)=tan^(2)45^(@)-cos60^(@) , then find the value of a .

If x sin 45^(@) cos 45^(@) tan60^(@)=tan^(2)45^(@) -cos60^(@) , then determine the value of x.

sin^(2)45^(@)+cos^(2)45^(@)=

Find the value of the following (i) tan 60^@ xx cos 30^@ (ii) sin 45^@ * cos 45^@ – sin^2 30^@ (iii) 2 sin 45^@* cos 45^@*tan 45^@ (iv) cos 30^@* cos 45^@ – sin 30^@* sin 45^@ (v) tan 30^@* sec 45^@ + tan 60^@* sec 30^@

If tan x =sin 45^(@) cos 45^(@) cos 45^(@)+Sin30^(@) ,then x is equal to:

cos 45^(@)-sin 45^(@)=?

Consider the following I. (cot 30^@+1)/(cot30^@ -1) = 2 (cos300^@ +1) II. 2 sin 45^@ cos 45^@ - tan 45^@ cot 45^@ = 0 Which of the above identities is/are correct ?

The value of ("sin"23^(@)"cos"67^(@)"tan"45^(@)+"cos"23^(@)"sin"67^(@)"cot"45^(@))/(2"sin"45^(@)"cos"45^(@)) is: