cos^(-1)(cos(-680^(@)))

Write the principal value of cos^(-1)(cos680^(@))

Write the principal value of cos^(-1)(cos680^0)dot

Evaluate each of the following: (i) cos^(-1)(cos((13pi)/6)) (ii) cos^(-1)(cos3) (iii) cos^(-1)(cos4)

(1-(cos61^(@))/(cos1^(@)))(1-(cos62^(@))/(cos2^(@)))(1-(cos63^(@))/(cos3^(@)))...(1-(cos119^(@))/(cos59^(@)))

Find the principal value of the following (i) cos^(-1) (cos 3) (ii) cos^(-1) (cos 4) (iii) cos^(-1) (cos 15) (iv) cos^(-1) (cos 30) (v) cos^(-1) (cos 50) (vi) cos^(-1) (cos.(48pi)/(7))

Find the principal value of the following (i) cos^(-1) (cos 3) (ii) cos^(-1) (cos 4) (iii) cos^(-1) (cos 15) (iv) cos^(-1) (cos 30) (v) cos^(-1) (cos 50) (vi) cos^(-1) (cos.(48pi)/(7))

Find the principal value of the following (i) cos^(-1) (cos 3) (ii) cos^(-1) (cos 4) (iii) cos^(-1) (cos 15) (iv) cos^(-1) (cos 30) (v) cos^(-1) (cos 50) (vi) cos^(-1) (cos.(48pi)/(7))

Solve the equation: cos^(-1)(a/x)-cos^(-1)(b/x)=cos^(-1)(1/b)-cos^(-1)(1/a)

Solve the equation: cos^(-1)(a/x)-cos^(-1)(b/x)=cos^(-1)(1/b) - cos^(-1)(1/a)

Let A=[(cos^(- 1)x,cos^(- 1)y,cos^(- 1)z),(cos^(- 1)y,cos^(- 1)z,cos^(- 1)x),(cos^(- 1)z,cos^(- 1)x,cos^(- 1)y)] such that |A| = 0 , then maximum value of x + y + z is