sin((pi)/(2))

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sin^(2)(pi)/(4)+sin^(2)(3 pi)/(4)+sin^(2)(5 pi)/(4)+sin^(2)(7 pi)/(4)=2

The value of (sin^(2)(pi)/(10)+sin^(2)(4 pi)/(10)+sin^(2)(6 pi)/(10)+sin^(2)(9 pi)/(10)) is

If L = sin^2 ((pi)/(16)) - sin^2 ( pi/8) and M = cos^2 ( (pi)/(16)) - sin^2 (pi/8), then :

A=[[cos((2 pi)/(33)),sin((2 pi)/(33))],[-sin((2 pi)/(33)),cos((2 pi)/(33))]] , then A^(2017)=

If A=[{:("cos"(2pi)/(3),-"sin"(2pi)/(3)),("sin"(2pi)/(3),"cos"(2pi)/(3)):}] then , A^(3)= …….

Prove that: (sin^(2)pi)/(18)+(sin^(2)pi)/(9)+(sin^(2)(7 pi))/(18)+(sin^(2)(4 pi))/(9)=2

Prove that, sin^(2)((pi)/(18))+sin^(2)((pi)/(9))+sin^(2)((7pi)/(18))+sin^(2)((4pi)/(9))=2

Prove that: sin^2(pi/(18))+sin^2(pi/9)+sin^2((7pi)/(18))+sin^2((4pi)/9)=2

Prove that "sin"^(2)(pi)/(18)+"sin"^(2)(pi)/(9)+"sin"^(2)(7pi)/(18)+"sin"^(2)(4pi)/(9)=2 .