" Find the value of "sin^(2)((pi)/(18))+sin^(2)((pi)/(9))+sin^(2)((7 pi)/(18))+sin^(2)((4 pi)/(9))

Prove that, sin^(2)((pi)/(18))+sin^(2)((pi)/(9))+sin^(2)((7pi)/(18))+sin^(2)((4pi)/(9))=2

The value of (sin^(2)(pi)/(10)+sin^(2)(4 pi)/(10)+sin^(2)(6 pi)/(10)+sin^(2)(9 pi)/(10)) is

(ii) Find the value of sin^(2). (pi)/(4) + sin^(2). (3pi)/(4) + sin^(2). (5pi)/(4) + sin^(2). (7pi)/(4) .

Prove that: (sin^(2)pi)/(18)+(sin^(2)pi)/(9)+(sin^(2)(7 pi))/(18)+(sin^(2)(4 pi))/(9)=2

Prove that "sin"^(2)(pi)/(18)+"sin"^(2)(pi)/(9)+"sin"^(2)(7pi)/(18)+"sin"^(2)(4pi)/(9)=2 .

The value of sin((pi)/(18))+sin((pi)/(9))+sin((2pi)/(9))+sin((5pi)/(18)) is

Find the value of sin^(2)""(pi)/(10)+sin^(2)""(4pi)/(10)+sin^(2)""(6pi)/10+sin^(2)""(9pi)/10 .

Prove that: sin ^ (2) ((pi) / (18)) + sin ^ (2) ((pi) / (9)) + sin ^ (2) ((7 pi) / (18)) + sin ^ (2) ((4 pi) / (9)) = 2

sin^(2)(pi)/(4)+sin^(2)(3 pi)/(4)+sin^(2)(5 pi)/(4)+sin^(2)(7 pi)/(4)=2

Prove that: sin^2(pi/(18))+sin^2(pi/9)+sin^2((7pi)/(18))+sin^2((4pi)/9)=2