Which one of the following number is largest in value? (A) `tan((5pi)/4)` (B) `sin^2((5pi)/4)` (C)`log_2 ((5pi)/4)` (D) `ln((5pi)/4)`

cos ((5pi)/(4)) - sin ((5pi)/(4)) + tan((11pi)/(4)) - cot((11pi)/(4))=

Which of the following is the correct value of ((7pi^(c))/(4) + (4pi^(c))/(3)-(5pi^(c))/(12)) ?

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

sin ((pi) / (5)) sin ((2 pi) / (5)) sin ((3 pi) / (5)) sin ((4 pi) / (5)) =

Prove that, cos^(2) (pi/4) + sin^(2) (3pi/4) + sin^(2) (5pi/4) + sin^(2)(7pi/4) = 2 .

The value of sin^(-1)(-sqrt(3)/2)\ is: (A) (-pi)/3 (B) (-2pi)/3 (C) (4pi)/3 (D) (5pi)/3

Evalute : "sin"^(2)(pi)/(4) + "cos"^(2) (3pi)/(4)+"cos"^(2)(5pi)/(4)+"sin"^(2)(7pi)/(4).

Find the value of the following :- {:((a)sin((pi)/(6)),(b)cos ((pi)/(4))), ((c)tan((pi)/(3)),(d)cos ((pi)/(2))), ((e)cot ((3pi)/(4)),(f)sin((5pi)/(6))),((g)sin pi,(h)cos pi),((i)sin((pi)/(2)),(j)sin((3pi)/(2))),((k)cos((3pi)/(2)),):}

Find the value tan((pi)/(5))+2tan((2 pi)/(5))+4cot((4 pi)/(5))