निम्नलिखित के मूल्य ज्ञात करें :
`cos 30^(@) * cos 45^(@) - sin 30^(@) * sin 45^(@)`

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

6cos60^(@) -sin30^(@)+sin^(2)45^@+cos^(2)45^@

(sin30^(@)cos45^(@))/(tan 60^(@)) is equal to

Find the value of x if tan 3 x = sin 45^(@) cos 45^(@) + sin 30^(@)

Evaluate cos45^(@)cos30^(@)+sin45^(@)sin30^(@) .

Evaluate cos45^(@)cos30^(@)+sin45^(@)sin30^(@) .

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^@

frac(sin 30^.cos 45^@)(tan 60^@)

Evaluate each of the following : sin30^(@)cos45^(@)+cos30^(@)sin45^(@)