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If `cos^(-1) x - cos^(-1). y/2= alpha ", then " 4x^(2) - 4xy cos alpha + y^(2) ` is equal to
If `cos^(-1) x - cos^(-1). y/2= alpha ", then " 4x^(2) - 4xy cos alpha + y^(2) ` is equal to
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If `cos^(-1) x - cos^(-1). y/2= alpha ", then " 4x^(2) - 4xy cos alpha + y^(2) ` is equal to
If 〖cos〗^(-1) x-〖cos〗^(-1) y/2=α, then 4x^2-4xy cos〖α+y^2 〗 is equal to
if 'cos^ -1(x)-cos^ -1(y/2)=alpha' then '4x^2−4xy cos(alpha)+y^2' is equal to |
If `cos^(-1)x-"cos"^(-1)y/2=alpha`, then `4x^(2)-4xycos alpha+y^(2)` is equal to
if cos^(-1)x-cos^(-1)(y//2)=alpha,x in [-1,1],y in [-2,2] then the value of 4x^(2)-4xycosalpha+y...
If `cos^-1 x- cos^-1 (y/2)=alpha, then 4x^2-4xycosalpha+y^2` is equal to (A) 4 (B) `2sin2alpha
If cos-1x - cos-1y/2 = α then 4x2 – 4xycosα + y2 is equal to
If cos ^-1 x-cos ^-1y/2=α, where -1 ≤ x ≤ 1,-2 ≤ y ≤ 2, x ≤y/2, then for all x, y, 4 x^2-4 x y co...
If `cos ^(-1) x - cos ^(-1) \"\"( y )/(2) = alpha`, where ` -1 le x le 1, -2 le y le 2, x le
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Sec² x =4xy/(x+y)^2 is true if and only if?Rd sharma MCQ 11th Trigonometric functions|cet|jee|mains
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if A(cosalpha,sinalpha),B(sinalpha,-cosalpha),C(1,2) are the vertices of DeltABC,then as alpha F...