" The value of "(sin e^(2)20^(@)-cot^(2)70^(@))" te "

Find the value of sin^(2)20^(@)+sin^(2)70^(@)

Find the value of (cos^(2)20^(@)+cos^(2)70^(@))/(sin^(2)59^(@)+sin^(2)31^(@)) .

The value of (sin 20^(@) cos 70^(@)+sin70^(@) cos 20^(@) ) is ……….. .

Find the value of : 3 sin^(2) 20^(@) - 2 tan^(2) 45^(@) + 3 sin^(2) 70^(@) .

The value of (cos^(3)20^(@)-cos^(3)70^(@))/(sin^(3)70^(@)-sin^(3)20^(@))=?

The value of (sin 20^(@)cos70^(@)+ cos20^(@)sin70^(@))/(sin23^(@)"cosec"23^(@)+cos23^(@)sec23^(@)) is _________.

What is the value of (tan^(2)25^(@))/(cosec^(2)65^(@))+(cot^(2)25^(@))/(sec^(2)65^(@))+tan20^(@)45^(@)tan70^(@) ?

The value of (1+sec20^(@)+cot70^(@))(1-"cosec"20^(@)+tan70^(@)) is equal to

The value of sin^(2)22^(@) + sin^(2)68^(@) + cot^(2)30^(@) is