`cos 48^@ \ cos 23^@ \ cosec 42^@ \ cosec 67^@ = 1`

cosec 23^@ - sec 67^@

The value cosec(67^@ +theta)-sec (23^@ -theta)+cos 15^@ cos35^@ cosec 55^@ cos60^@ cosec 75^@ is: cosec(67^@ +theta)-sec (23^@ -theta)+cos 15^@ cos35^@ cosec 55^@ cos60^@ cosec 75^@ का मान है :

cosec 48^(@) + cosec 96^(@) + cosec 192^(@) + cosec 384^(@)=

cosec 48^(@) + cosec 96^(@) + cosec 192^(@) + cosec 384^(@)=

The value cosec (67^@ + theta) - sec(23^@- theta) + cos15^@ cos35^@ cosec55^@ cos60^@ cosec75^@ is:

Show that : (i) tan 10^(@) tan 15^(@) tan 75^(@) tan 80^(@) = 1 (ii) sin 42^(@) sec 48^(@) + cos 42^(@) "cosec 48"^(@) = 2

cos7^(@)cos23^(@)cos45^(@)cosec83^(@)cosec67^(@)=?

Prove the following : (cot A - cos A)/(cot A + cos A) = (cosec A -1)/(cosec A + 1) .

If A + B + C = pi , prove that cos A cosec B cosec C + cos B cosec C cosec A + cos C cosec A cosec B = 2 .