The value of `cos^2 48^0-sin^2 12^0` is `(sqrt(5)+1)/8` (b) `(sqrt(5)-1)/8` (c) `(sqrt(5)+1)/5` (d) `(sqrt(5)+1)/(2sqrt(2))`

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

Prove that cos^2 48^@-sin^2 12^@=((sqrt5+1))/8

The value of cos^(2)48^(@)-sin^(2)12^(@) is ........... A) (sqrt5-1)/( 4) B) (sqrt5+1)/(8) C) (sqrt3-1)/(4) D) (sqrt3+1)/(2sqrt2)

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

The value of cos48cos12 (A) (sqrt(5)+3)/(8) (B) (3-sqrt(5))/(2) (C) (sqrt(5)+1)/(4) (D) (sqrt(5)-1)/(4)

Which of the following is the value of sin 27^0-cos 27^0? (a) -(sqrt(3-sqrt(5)))/2 (b) (sqrt(5-sqrt(5)))/2 (c) -(sqrt(5)-1)/(2sqrt(2)) (d) none of these

Which of the following is the value of sin 27^0-cos 27^0? (a) -(sqrt(3-sqrt(5)))/2 (b) (sqrt(5-sqrt(5)))/2 (c) -(sqrt(5)-1)/(2sqrt(2)) (d) none of these

Which of the following is the value of sin 27^0-cos 27^0? (a) -(sqrt(3-sqrt(5)))/2 (b) (sqrt(5-sqrt(5)))/2 (c) -(sqrt(5)-1)/(2sqrt(2)) (d) none of these

Which of the following is the value of sin27^(0)-cos27^(0)?( a) -(sqrt(3-sqrt(5)))/(2) (b) (sqrt(5-sqrt(5)))/(2)(c)-(sqrt(5)-1)/(2sqrt(2)) (d) none of these

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