The value of `cosec(pi/18)-sqrt3sec(pi/18)` is a

The value of cos e cpi/(18)-4sin(7pi)/(18) is

The value of cos e cpi/(18)-4sin(7pi)/(18) is

The value of cos e cpi/(18)-4sin((7pi)/(18)) is

The value of csc(pi)/(18)-4sin(7 pi)/(18) is

The value of "cosec".(pi)/(18)-4 sin""(7pi)/(18) is ____________

The value of "cosec".(pi)/(18)-4 sin""(7pi)/(18) is ____________

The value of "cosec"^(-1)("cosec"(4pi)/3) is

The exact value of cos((2pi)/28)cosec((3pi)/28)+cos((6pi)/28)cosec((9pi)/28)+cos((18pi)/28)cosec((27pi)/28)

The value of (tan pi)/(18)+2*(tan(7 pi))/(18) is equal to

Find the value of cosec^2pi/4-sec^2(pi/6)+2 cot^2(pi/3)-sin^2(pi/2)