`(cos2^3)pi/10(cos2^4)pi/10(cos2^5)pi/10.........(cos2^(10))pi/10` is equal to `p/29.` (in lowest form) `p,q in N` then

cos2^(3)((pi)/(10))cos2^(4)((pi)/(10))cos2^(5)((pi)/10)....cos2^(10)((pi)/10) is equal to A. (1)/(128) B (1)/(256) C (1)/(512)sin(pi)/(10) D (sqrt(5)-1)/(512)sin(3 pi)/(10)

5. if the expression cos^2(pi/11)+cos^2((2pi)/11)+cos^2((3pi)/11)+cos^2((4pi)/11)+cos^2((5pi)/11) has the value equal to p/q in it lowest from ; then find (p+q)

If the expression cos^2(pi/11)+cos^2((2pi)/11)+cos^2((3pi)/11)+cos^2((4pi)/11)+cos^2((5pi)/11) has the value equal to p/q in it lowest from ; then find (p+q)

(sin((pi)/(10))+sin(13(pi)/(10)))(cos^(2)((pi)/(6))-cos^(2)((pi)/(10))) is equal to

Given , cos2^(m)thetacos2^(m+1)theta......cos2^ntheta=(sin2^(n+1)theta)/(2^(n-m+1)sin2^(m) theta) where 2^mtheta ne kpi,n,m,k in l solve the following cos2^(3)""(pi)/10cos2^(4)""(pi)/10cos2^(5)""(pi)/10.....cos2^(10)""(pi)/10 is equal to

5.if the expression cos^(2)((pi)/(11))+cos^(2)((2 pi)/(11))+cos^(2)((3 pi)/(11))+cos^(2)((4 pi)/(11))+cos^(2)((5 pi)/(11)) has the value equal to p/q in it lowest from ; then find (p+q)

The value of 4 cos(pi/10)-3 sec(pi/10)- 2 tan(pi/10) is equal to

The value of 4 cos(pi/10)-3 sec(pi/10)- 2 tan(pi/10) is equal to