[" fter "],[[(cos0^(@)+sin30^(@)+sin45^(@))],[(sin90^(@)+cos60^(@)-cos45^(@))=(7)/(4)]]

Choose the correct answer in each of the following questions: (cos0^(@)+sin30^(@) +sin45^(@))(sin 90^(@) + cos60^(@)-cos45^(@))=?

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

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

" (iv) (sin30^(@)+tan45^(@)-cosec60)/(sec30^(@)+cos60^(@)+cot45^(@))

The value of (cos 0^(@) + sin 45^(@) + sin 30^(@)) (sin 90^(@) - cos 45^(@) + cos 60^(@)) is

Find the value of the following: (sin90^(@)+cos60^(@)+cos45^(@))xx(sin30^(@)+cos0^(@)-cos45^(@))

sin30 ^ (@) sin ^ (2) (60) ^ (@) + 3cos60 ^ (@) tan45 ^ (@) =

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

Evaluate (sin30^(@)+tan45^(@)-cosec60^(@))/(sec30^(@)+cos60^(@)+cot45^(@))

(cos 60^(@) xx cos 30^(@)+sin 60^(@)xx sin 30^(@))/(2 sin 30^(@) xx cos 0^(@)+ sin 90^(@))=?