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Statement (1): If mcos(theta+alpha)= n c...

Statement (1): If `mcos(theta+alpha)= n cos(theta-alpha)` then `tan theta * tan alpha = (m+n)/(m-n)` Statement (2): If `sin(alpha+beta)/sin(alpha-beta) = (a+b)/(a-b)` then `tan alpha * cot beta = a/b` Which of the above statements is correct? (i) only I (ii) only II (iii) both I and II (iv) Neither I nor II

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Statement-I: If mcos(theta + alpha) =ncos(theta-alpha) then tan alpha tan theta =(m+n)/(m-n) Statement:II If (sin(alpha + beta))/(sin(alpha-beta)) =(a+b)/(a-b) , then tan alpha cot beta =a/b Which of the above statements is correct?

Statement I : If m cos(theta+alpha)=n cos (theta-alpha) then tan theta.tan alpha=(m+n)/(m-n) Statement II : If (sin(alpha+beta))/(sin(alpha-beta))=(a+b)/(a-b) then tan alpha.cot beta=(a)/(b) Which of the above statements is correct ?

If (sin(alpha+beta))/(sin(alpha-beta)) = (a+b)/(a-b) , then prove that a tan beta = b tan alpha .

If m sin theta=n sin(theta+2 alpha), prove that tan(theta+alpha)cot alpha=(m+n)/(m-n)

If tan beta=cos theta tan alpha , then prove that tan^(2)""(theta)/(2)=(sin(alpha-beta))/(sin(alpha+beta)) .

If tan beta=cos theta tan alpha , then prove that tan^(2)""(theta)/(2)=(sin(alpha-beta))/(sin(alpha+beta)) .

If tan beta=cos theta tan alpha , then prove that tan^(2)""(theta)/(2)=(sin(alpha-beta))/(sin(alpha+beta)) .

If tan beta=cos theta tan alpha , then prove that tan^(2)""(theta)/(2)=(sin(alpha-beta))/(sin(alpha+beta)) .

s(theta-alpha)=a and cos(theta-beta)=b, then sin^(2)(alpha-beta)+2ab cos(alpha-beta)=