" (ii) "sin45^(@)*cos45^(@)-sin^(2)30^(@)

2sin45^(@)cos45^(@)

cos 45^(@)-sin 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 = sin45^(@) cos 45^(@) + sin 30^(@) then x is equal to

Prove that: i) sin(A+B)cos(A-B)-cos(A+B)sin(A-B)=sin2B ii) cos(45^(@)-A)cos(45^(@)-B)-sin(45^(@)-A)sin(45^(@)-B)=sin(A+B)

Prove that: i) sin(A+B)cos(A-B)-cos(A+B)sin(A-B)=sin2B ii) cos(45^(@)-A)cos(45^(@)-B)-sin(45^(@)-A)sin(45^(@)-B)=sin(A+B)

The value of sin30^(@)*sin45^(@)*"cosec"45^(@)*cos30^(@) =________

Evaluate sin45^(@)+cos45^(@)

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