`sin 4530^@=`

sin4530^(@) How to find that theta=4530^(@) lies in which quadrant

Without using tables, give the value of the following : sin4530^(@)

"sin" 10^(@)+"sin" 20^(@)+"sin" 40^(@)+"sin" 50^(@)="sin" 70^(@)+"sin" 80^(@) .

Prove the following : sin 10^@ + sin 20^@ + sin 40^@ + sin 50^@ = sin 70^@+ sin 80^@ .

The value of cos(4530^(@))=

Find the values of the following trigonometric ratio: s in4530^(0)

A certain dye absorbs 4530A^(@) and fluoresence at 5080A^(@) these being wavelength of maximum absorption that under given condition 47% of the absorbed energy is emitted. Calculate the ratio of the no of quanta emitted to the number absorbed.

sin 10^(@) sin 30^(@) sin 50^(@) sin 70^(@) sin 90^(@)=

Prove that : sin 10^(@) + sin 20^(@) + sin 40^(@) + sin 50^(@) = sin 70^(@) + sin 80^(@).

Prove that sin10^(@)+sin20^(@)+sin40^(@)+sin50^(@)=sin70^(@)+sin80^(@) .