The value of `sin20 0^@+cos20 0^@` is

The value of sin20^@ cos70^@+ sin70^@ cos20^@ is: sin20^@ cos70^@+ sin70^@ cos20^@ का मान क्या होगा ?

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

The value of (sin^2 20^@ + cos^4 20^@)/(sin^4 20^@+cos^2 20^@) is

Write the value of |[sin20^@-cos20^@ ],[sin70^@ cos70^@]| .

The value of sec70^@*sin20^@+cos20^@*cosec70^@ = ……………

The value of sec70^@sin20^@+cos20^@cosec70^@ is

The value of cos 10^@ sin 20^@ is ________.

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

The value of sec 70^@.sin 20^@ + cos 20^@.cosec 70^@ =………..

The value of (sin^(2)20^(@)+cos^(4)20^(@))/(sin^(4)20^(@)+cos^(2)20^(@)) is