" (h) "360^(@)

The value of (1-tan^(2)360^(@))/(1+tan^(2)360^(@)) is :

Prove that the sum of the angles of a quadrilateral is 360^(@) .

An angle measuring 360^(@) is

The wing span of an aeroplane is 40m. The plane is flying horizontally due north at 360 km/h. What is the potential difference developed between the wing-tips if the horizontla component of the Earth's magnetic field B_(h) = 3.2 xx 10^(-5) T and the angle of dip at the place is 60^(@) ?

Prove that: (sin(180^(@)+theta)cos(90^(@)+theta)tan(270^(@)-theta)cot(360^(@)-theta))/(sin(360^(@)-theta)cos(360^(@)+theta)cos ec(-theta)sin(270^(@)+theta))=1