Find the value of:`3sin(pi/6) sec(pi/3) 4sin((5pi)/6) cot(pi/4)`

Prove that: 3sin(pi/6)sec(pi/3)-4sin((5pi)/6)cot(pi/4)=1

The value of 3"sin"pi/(6)."sec"pi/(3)-4"sin"(5pi)/(6)."cot"pi/(4) is (i) -1 (ii) 0 (iii) 1 (iv) 2

Find the value of sin^(-1)(sin.(5pi)/3) .

The value of sin(pi/14)sin((3pi)/14)sin((5pi)/14) is

The value of sin(pi/14)sin((3pi)/14)sin((5pi)/14) is

Find the value of (i) sin. (5pi)/(3)

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

int_(pi//6)^(pi//3) sin(3x)dx=

Find the value of cos""(pi)/(12)(sin""(5pi)/(12)+cos""(pi)/(4))+sin""(pi)/(12)(cos""(5pi)/(12)-sin""(pi)/(4)) .

The value of sin\ pi/16 sin\ (3pi)/16 sin\ (5pi)/16 sin\ (7pi)/16 is