(cosx + cos y)^(2) + (sin x- sin y)^(2) ...

` (cosx + cos y)^(2) + (sin x- sin y)^(2) = 4 cos^(2) ((x+y)/2)`

(cosx + cos y)^(2) + (sin x- sin y)^(2) = 4 cos^(2) ((x+y)/2)
Text Solution
|
If cos^4x/cos^2y+sin^4x/sin^2y=1 then prove that cos^4y/cos^2x+sin^4y/...
Text Solution
|
(cos x+ cos y)^(2)+(sin x- sin y)^(2)=4 cos^(2)""(x+y)/(2)
Text Solution
|
(cos x- cos y)^(2) +( sin x- sin y)^(2)=4 sin^(2)""(x-y)/(2)
Text Solution
|
If 2^(sin x+cos y)=1 and 16^(sin^(2)x+cos^(2)y)=4, then find the value...
Text Solution
|
(cosx + cos y)^(2) + (sin x- sin y)^(2) = 4 cos^(2) ((x+y)/2)
Text Solution
|
(cos x - cos y)^(2) + ( sin x - sin y )^(2) = 4 sin^(2)((x-y)/2)
Text Solution
|
यदि (cos^(4)x)/(cos^(2)y)+(sin^(4)x)/(sin^(2)y)=1 हो, तब (cos^(4)y)/(c...
Text Solution
|
If (cos^(4)x)/(cos^(2)y)+(sin^(4)x)/(sin^(2)y)=1, then (cos^(4)y)/(cos...
Text Solution
|