The value of `sin^2(20^@)+sin^2(70^@)` is........

The value of sin10^(@),sin50^(@).sin70^(@) is

The value of sin50^(@)-sin70^(@)+sin10^(@) is

The value of sin20^@ sin40^@ sin60^@ sin80^@

The value of sin^2 20^@ +sin^2 70^@ - tan^2 45^@+sec 60^@ is equal to : sin^2 20^@ +sin^2 70^@ - tan^2 45^@+sec 60^@ का मान किसके बराबर है?

What is the value of sin^(2) 15^(@) + sin^(2) 20^(@) + sin^(2)25^(@) + ……… + sin^(2) 75^(@) ?

The value of (sin50^(@)+sin10^(@))/(sin70^(@)) is equal to

The value of sin50^(@) - sin70^(@)+sin10^(@) is equal to

The value of sin10^(@)+sin20^(@)+sin30^(@)...+sin360^(@) is equal to -