`cos^2 48^0-sin^2 12^0` is equal to

cos^2 48^@-sin^2 12^@=

The values of cos^2 73^0+cos^2 47^0-sin^2 43^0+sin^2 107^0 is equal to: (b) 1/2 (c) (sqrt(3))/2 (d) sin^2 73^@+cos^4 73^@

The values of cos^2 73^0+cos^2 47^0-sin^2 43^0+sin^2 107^0 is equal to: (a) 1 (b) 1/2 (c) (sqrt(3))/2 (d) sin^2 73^@+cos^4 73^@

cos^(2)48^(@)-sin^(2)12^(0) is equal to

Prove that: cos^2 48^0-sin^2 12^0=(sqrt(5)+1)/8

The value of cos24^0/(2tan33^0sin^2(57^0))+sin162^0/(sin18^0-cos18^0tan9^0)+cos162^0 is equal to

The values of cos^(2)73^(0)+cos^(2)47^(0)-sin^(2)43^(0)+sin^(2)107^(0) is equal to: ( b) (1)/(2)(c)(sqrt(3))/(2) (d) sin^(2)73^(@)+cos^(4)73^(@)

Find the value of cos^2 48^@-sin^2 12^@

The exact value of (96sin80^0sin65^0sin35^0)/(sin20^0+sin 50^0+sin 110^0) is equal to 12 (b) 24 (c) -12 (d) 48

sin 12^(@) sin 48^(@) sin 54^(@) is equal to