[4a^(2)sin^(2)((3 pi)/(4))-3[a tan225^(@)]^(2)+[2a cos315^(@)]^(2)=],[[" 1) "0," 2) "a," 3) "sqrt(2a)," 4) "a^(2)]]

4a^(2)sin^(2)((3 pi)/(4))-3[a tan225^(@)]+[2a cos315^(@)]^(2)=

sin^(2)pi/6+cos^(2)pi/3-tan^(2)pi/4=-1/2

sin ^(2)(pi/6) + cos ^(2)(pi/3) - tan ^(2)(pi/4) =- 1/2

sin^(2) (pi/6)+cos^(2) (pi/3)-tan^(2) (pi/4)=-1/2

The value of the ,, sin ^ (2) 37 ^ (@), sin ^ (2) 53 ^ (@), - tan ^ (2) 225 ^ (@) sin ^ (2) 53 ^ (@), -tan ^ (2) 135 ^ (@), sin ^ (2) 37 ^ (@) - tan ^ (2) 315 ^ (@), sin ^ (2) 37 ^ (@), sin ^ (2) 53 ^ (@)] | is

What is sin^(2)(3pi)+cos^(2)(4pi)+tan^(2)(5pi) equal to ?

sin ^(2) " (pi)/(6) + cos ^(2) "" (pi)/(3) - tan ^(2) " (pi)/(4) =- 1/2

sin ^(2) " (pi)/(6) + cos ^(2) "" (pi)/(3) - tan ^(2) " (pi)/(4) =- 1/2

"tan"^(2)(pi)/(4) "sin"(pi)/(3) "tan"(pi)/(6) "tan"^(2)(pi)/(3) =

sin^(2)(pi)/(6)+cos^(2)(pi)/(3)-tan^(2)-(1)/(2)(pi)/(4)=-(1)/(2)