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" 6."(sin A+cos A)/(sin A-cos A)+(sin A-...

" 6."(sin A+cos A)/(sin A-cos A)+(sin A-cos A)/(sin A+cos A)=(2)/(1-2cos^(2)A)=(2sec^(2)A)/(tan^(2)A-1)

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(sin A+cos A)/(sin A-cos A)+(sin A-cos A)/(sin A+cos A)=(2)/(sin^(2)A-cos^(2)A) {Prove It}

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

(sin A) / (1 + cos A) + (1 + cos A) / (sin A) = 2cos ecA

(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)

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