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(sin A+cos A)/(sin A-cos A)=sqrt((1+sin2...

(sin A+cos A)/(sin A-cos A)=sqrt((1+sin2A)/(1-sin2A))

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tan ""A/2 is equal to.............. A) sqrt((1- sin A)/( 1+ sin A)) B) sqrt((1+ sin A)/(1- sin A)) C) sqrt((1 -cos A)/(1 + cos A)) D) sqrt((1 +cos A)/(1- cos A))

Prove the following identities : (sin A + cos A)/ (sin A - cos A) + (sin A - cos A)/ (sin A + cos A) = (2)/ (2 sin^(2) A - 1)

Prove that: (sin A + cos A)/(sin A - cos A) + (sin A - cos A)/(sin A + cos A) = (2)/(sin^(2)A-cos^(2)A)=(2)/(2sin^(2)A-1)=(2)/(1-2 cos^(2)A) .

Prove the following identities: (sin+cos A)/(sin A-cos A)+(sin-cos A)/(sin A+cos A)=(2)/(sin^(2)A-cos^(2)A)=(2)/(2sin^(2)A-1)=(2)/(1-2cos^(2)A)

Prove the following identities : (1)/ (sin A + cos A) + (1)/ (sin A - cos A) = (2 sin A)/ (1 - 2 cos^(2) A)

(sin A + cos A)^2 = 1 + sin2A

(1-sin A-cos A)^(2)=2(1-sin A)(1-cos A)

(1-sin A-cos A)^(2)=2(1-sin A)(1-cos A)

(1-sin A-cos A)^(2)=2(1-sin A)(1-cos A)

(sin2A)/(1+cos 2A) is