Find the value of
`cos""(pi)/(12)(sin""(5pi)/(12)+cos""(pi)/(4))+sin""(pi)/(12)(cos""(5pi)/(12)-sin""(pi)/(4))`.

Find the value of: cos((5pi)/12)

Find the value of sin^(-1) ( sin "" (5pi)/(9 ) cos "" (pi)/(9) + cos ""(5 pi )/(9) sin ""(pi) /(9))

Find the value of 2cos((5 pi)/(12))cos((pi)/(12)) and 2sin((5 pi)/(12))cos((pi)/(12))

The value of (cos ^(2) ""(pi)/(12)+ cos^(2) ""(pi)/(4)+ cos ^(2) ""(5pi)/(12)) is-

"sin" pi/12 "sin" (5pi)/12=

Numerical value of cos ((pi) / (12)) ((sin (5 pi)) / (12) + cos ((pi) / (4))) + sin ((pi) / (12)) (( cos (5 pi)) / (12) -sin ((pi) / (4)))

Find the value of 2cos((5pi)/12) cos(pi/12) and 2sin((5pi)/12)cos(pi/12)

sin ""(pi)/(4) cos ""(pi)/(12) - cos ""(pi)/(4) sin ""(pi)/(12) is equal to