`sin(pi/10)sin((3pi)/10)=`

The value of sin(pi/14)sin((3pi)/14)sin((5pi)/14)sin((7pi)/14)sin((9pi)/14)sin((11pi)/14)sin((13pi)/14) is

The value of sin(pi/(14))sin((3pi)/14)sin((5pi)/(14))sin((7pi)/(14))sin((9pi)/(14))sin((11pi)/(14))sin((13pi)/(14)) is equal to___________

Solve the following:Show that sin^2(pi/10)+sin^2((4pi)/10)+sin^2 ((6pi)/10)+sin^2 ((9pi)/10)=2

The value of cos^(-1){1/sqrt2(cos((9pi)/10)-sin((9pi)/10))}

If K=sin(pi/(18))sin((5pi)/(18))sin((7pi)/(18)), then the numerical value of K is_____

If k=sin(pi/18)sin((5pi)/18)sin((7pi)/18) , then the numerical value of k is

The value of sin^2 (pi/8)+sin^2 ((3pi)/8)+sin^2 ((5pi)/8)+sin^2 ((7pi)/8) is

sin^4(pi/8)+sin^4((2pi)/8)+sin^4((3pi)/8)+sin^4((4pi)/8)+sin^4((5pi)/8)+sin^4((6pi)/8)+sin^4((7pi)/8)=

Prove that sin^2(pi/8)+sin^2(3pi/8)+sin^2(5pi/8)+sin^2(7pi/8)=2