If `sin(x-y),sinx,sin(x+y)` are in H.P., then find the value of `sinxsec(y/2)`

17.) If sin(x - y), sin x and sin(x + y) are in H.P., thensinx. sec} -(1) 2(2) JE(3) – JE(4) – 2

If sin^(-1)x+sin^(-1)y+sin^(-1)z =(3pi)/2 , then find the value of x^2+y^2+z^2

If sin(y+z-x),sin(z+x-y),sin(x+y-z) are in A.P.then tan x,tan y, tan z are in (a)A.P.(b) G.P.(c) H.P.(d) none of these

If sin^-1x+sin^-1y+sin^-1z=(3pi)/2 , then find the value of x^2+y^2+z^2

If sin(y+z-x),sin(z+x-y),sin(x+y-z) are in A.P ., then tan x , tan y , tan z are in

If 2^(sin x+cos y)=1 and 16^(sin^(2)x+cos^(2)y)=4 , then find the value of sin x and cos y

If sin x+sin y+sin z=3. Find the value of cos x+cos y+cos z

if sin x=(12)/(13) and sin y=(4)/(5) find the values of sin(x+y)

If sin^-1 x+sin^-1 y+sin^-1 z=(3pi)/2 , then find the value of x^2+y^2+z^2