cos38^(@)cos52^(@)-sin38^(@)sin52^(@)" का मन "

cos38^(@)cos52^(@)-sin38^(@)sin52^(@)=0

The value of cos38^(@)cos52^(@)-sin38^(@)sin52^(@) is :

Show that : cos38^(@)cos52^(@)-sin38^(@)sin52^(@)=0

Find the value of: (i)tan90^@ (ii) cos38^@cos52^@-sin38^@sin52^@

cos 38^(@) cos 8^(@) + sin 38^(@)sin 8^(@) is equal to

cos 38^(@) cos 8^(@) + sin 38^(@)sin 8^(@) is equal to ................ A) cos 30^(@) B) cos 60^(@) C) cos 45^(@) D) cos 38^(@)

Show that : cos 38^@ cos 52^@-sin 38^@ sin 52^@ = 0

sin38^(@)+sin22^(@)=sin82^(@)

Evaluate : cos 38^@ cos 52^@ - sin 38^@ sin 52^@ .

(2sin38^(@))/(cos52^(@))