cos^(-1)(cos""(8pi)/(5))=...

`cos^(-1)(cos""(8pi)/(5))=`

cos^(-1)(cos""(8pi)/(5))=
Text Solution
|
The value of (1+cos ""(2pi)/(15))(1+cos""(8pi)/(15))(1+cos""(12pi)/...
Text Solution
|
cos^(-1)(cos""(8pi)/(5))=
Text Solution
|
The ascending order of A=Sin^(-1)("sin"(8pi)/7),Cos^(-1)("cos"(8pi)/7)...
Text Solution
|
Prove that, 16 "cos" (2pi)/15 "cos" (4pi)/15 "cos" (8pi)/15 "cos" (16p...
Text Solution
|
cos (pi)/(5 ) cos (2pi)/(5) cos (4pi)/(5 ) cos (8pi)/(5 ) का मान ...
Text Solution
|
Prove that cos(2pi)/(15)cos(4pi)/(15)cos(8pi)/(15)cos(14pi)/(15)=1/(16...
Text Solution
|
Prove that cos((2pi)/(15))cos((4pi)/(15))cos((8pi)/(15))cos((14pi)/(15...
Text Solution
|
Prove that: cos(pi/5)cos((2pi)/5)cos((4pi)/5)cos((8pi)/5)=(-1)/16
Text Solution
|