What is the value of `sin ^2 25 ^0+sin ^2 65 ^0? `

The value of sin 105^0 is

Evaluate : sin^2 (15^0 +A) - sin^2 (15^0 -A)

Write the value of sin 12^0sin48^0sin54^0dot

What is the value of a+b, if lim _(xto 0) (sin (ax) -ln (e ^(x)cos x))/(x sin (bx))=1/2 ?

Write the value of sin 10^0+sin 20^0+sin 30^0+....+sin 360^@

3sin^(2)x-7sin x +2=0, x in [0,(pi)/(2)] and f_(n)(theta)=sin^(n) theta + cos^(n) theta . On the basis of above information, the value of ( sin 5 x + sin 4 x)/( 1+ 2 cos 3 x) is:

The value of sin^2 12^0+sin^2 21^0+sin^2 39^0+sin^2 48^0-sin^2 9^0-sin^2 18^0 is _______

The value of sin^2 12^0+sin^2 21^0+sin^2 39^0+sin^2 48^0-sin^2 9^0-sin^2 18^0 is _______

Exact value of cos 20^0+2sin^2\ \ 55^0-sqrt(2)sin65^0\ is- a. 1 b. 1/(sqrt(2)) c. sqrt(2) d. zero

The value of the expression (tan^2 20^0-sin^2 20^0)/(tan^2 20^0+sin^2 20^0) is__________