What is the value of `cot((-5pi)/4)`?

What is the value of sin((-11pi)/3)?

Find the values of cos((19pi)/4)tan(-(31pi)/3)sec(-1290^@) and sin570^@ .

If A is a square matrix of order 4 and |A| = 6, then what is the value of |(adj A)| ?

Find the value of 32^-frac(4)(5)

If sin^(-1) x = (pi)/(5) , write down the value of cos^(-1)x .

If sin theta = 5/13 , find the value of (cot theta + cosec theta) .

Find the value of: cos^-1(cos(frac{5pi}{3}))

If hata and hatb are two mutually perpendicular unit vectors what is the value of (2hata + 3hatb). (4hata - 5 hatb) ?