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" सिद्ध करो कि "(cos2A)/(1-sin2A)=tan(45...

" सिद्ध करो कि "(cos2A)/(1-sin2A)=tan(45+A)

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Prove that: (cos2A)/(1+sin2A) = tan(pi/4-A)

Prove that: (cos2A)/(1+sin2A) = tan(pi/4-A)

Prove that (sin2A)/(1+cos2A)=tan A

Prove that (cos A )/( 1 - sin A ) = tan (45 ^(@) + (A)/(2)),

(cos A) / (1 + -sin A) = tan (45 ^ (@) + - (A) / (2))

(cos2A) / (1-sin2A) = (1 + tan A) / (1-tan A)

Prove that :(1+sin2A-cos2A)/(1+sin2A+cos2A)=tan A

(1 + tan A) / (1-tan A) = (cos2A) / (1-sin2A)

(1 + sin2A-cos2A) / (1 + sin2A + cos2A) = tan A

(1 + sin2A) / (cos2A) = (cos A + sin A) / (cos A-sin A) = tan ((pi) / (4) +1)