(1)/(i^(58))

Evaluate the following: i^((1)/(58))

The angle between the planes barr.(2bari-3barj+bark)=1 and barr.(i-j)=4 is cos^(-1)((-5)/(sqrt(58)))

(1)/(2.5)+(1)/(5.8)+(1)/(8.11)+.... nterms =

Find the sum to n terms of each of the following series : (1)/(2.5) + (1)/(5.8) + (1)/(8.11)+…

Sum the series upto n terms (1)/(2.5)+(1)/(5.8)+(1)/(8.11)+...

Let x and y be real numbers such that (sin x)/(sin y)=3 and (cos x)/(cos y)=(1)/(2). The value of (sin2x)/(sin2y)+(cos2x)/(cos2y) is (i)(49)/(58)(ii)(41)/(58)(iii)(51)/(58)( iv) none of these

Points (5,0),(5,1),(5,8) lie on

Prove that (sin32^(@)cos58^(@)+cos32^(@)sin58^(@))=1.