show that `sin35sin55-cos35cos55=0`

Prove that: (i) sin35 sin55-cos35 cos55=0 (ii) (cos70)/(sin20)+(cos59)/(sin31)-8sin^2 30=0

Prove that: (i) sin35o sin55o-cos35o cos55o=0 (ii) (cos70o)/(sin200)+(cos590)/(sin31o)-8sin^(2)30o=0

Evaluate the following: (i) sin35osin55o-cos35ocos55o (ii) tan48otan23otan42otan67o (iii) sec50osin40o+cos40ocos e c\ 50o

Evaluate the following: (i) sin35osin55o-cos35ocos55o (ii) tan48otan23otan42otan67o (iii) sec50osin40o+cos40ocos e c 50o

Find the value : Sin35^@sin55^@-Cos35^@Cos55^@

sin35/cos55=.........

sin 35 times cos 55 =…….

Show that : cos15^(@)cos35^(@)"cosec" 55^(@)sin30^(@)"cosec"75^(@)=(1)/(2)

Show that : cos15^(@)cos35^(@)"cosec" 55^(@)sin30^(@)"cosec"75^(@)=(1)/(2)