" (ख) "(sin75^(@))/(cos15^(@))" का मान हीरा : "

4sin75^@-3cos15^@=

sin 75^(@) + sin 15^(@) =

cos15^(@)-cos75^(@)=

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

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

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।

Cos15^(@) - Cos75^(@) =

Find the value of (sin75^(@)+sin15^(@))/(cos75^(@)+cos15^(@)) :

Calculate the value of (i) sin 15^(@) " "(ii) cos 15^(@)" "(iii) tan 15^(@) (iv) sin 75^(@) " "(v) cos 75^(@) " "(vi) tan 75^(@)

Calculate the value of (i) sin 15^(@) " "(ii) cos 15^(@)" "(iii) tan 15^(@) (iv) sin 75^(@) " "(v) cos 75^(@) " "(vi) tan 75^(@)