`152(sin30^(@)+2cos^(@)45^(@)+3sin30^(@)+4cos2^(2)45+ . . . .+17sin30^(@)+18cos^(2)45^(@)` का मान क्या होगा?

The value of sin^(2)30^(@)cos^(2)45^(@)

The value of 152 ( sin 30^@ + 2cos^2 45^@ + 3 sin 30^@ + 4 cos^2 45^@ + …+ 17 sin30^@ + 18 cos^2 45^@) is

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

(5sin^(2)30^(@)+cos^(2)45^(@)-4tan^(2)30^(@))/(2sin30^(@).cos30^(@)+tan45^(@))=?

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

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

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

sin^(2) 60^(@) + 2 tan 45^(@) - cos^(2) 30^(@)

The value of (5cos^2 60^@+4sec^2 30^@-tan^2 45^@)/(tan^2 60^@- sin^2 30^@-cos^2 45^@) is: (5cos^2 60^@+4sec^2 30^@-tan^2 45^@)/(tan^2 60^@- sin^2 30^@-cos^2 45^@) का मान क्या होगा ?

(2)/(3)(cos^(4)30^(@)-sin^(4)45^(@))-3(sin^(2)60^(@)-sec^(2)45^(@))+(1)/(4)cot^(2)30^(@)