`(sin 75^(@))/(cos 15^(@))` का मान होगा -

Find the value of (cos^2 30^@-sin^2 30^@)/(sin^2 15^@+cos^2 15^@) . (cos^2 30^@-sin^2 30^@)/(sin^2 15^@+cos^2 15^@) का मान ज्ञात कीजिए।

( sin 75^(@) - sin 15^(@))/( cos 15^(@) - cos 75^(@))=

sin 18^@-cos 72^@ is equal to : sin 18^@-cos 72^@ का मान क्या होगा ?

(sin 75^(@) - sin 15 ^(@))/( cos 75^(@) + cos 15 ^(@)) = (1)/(sqrt3)

sin 10^(@)+sin 20^(@) + sin 40 ^(@) + sin 50 = A) sin 15^(@) +sin 75^(@) B) cos 15^(@) + cos75^(@) C) sin 70^(@) + sin 80^(@) D) cos 70^(@) + cos 80^(@)

4sin75^@-3cos15^@=

Find the value of (sin 15^@)/(cos 15^@) xxtan 75^@ .

Simplify (sin 75^(@)-sin 15^(@))/(cos 75^(@)+cos 15^(@))

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