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(v)(sec A+tan A)(1-sin A)=cos A...

(v)(sec A+tan A)(1-sin A)=cos A

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(sec A+tan A)(1-sin A)=sec A(b)sin A(c)cos ecA(d)cos A

Prove that (1+sec A-tan A)/(1+sec A+tan A)=1-sin A/(cos A)

(sin A)/(sec A+tan A-1)+(cos A)/(cos ecA+cot A-1)=1

(1)/(sec A-tan A)-(1)/(cos A)=(1)/(cos A)-(1)/(sec A+tan A)

(1)/(sec A-tan A)-(1)/(cos A)=(1)/(cos A)-(1)/(sec A+tan A)

Show that (i) sin^(8)A-cos^(8)A=(sin^(2)A-cos^(2)A)(1-2sin^(2)A.cos^(2)A) (ii) (1)/(sec A-tan A)-(1)/(cos A)=(1)/(cos A)-(1)/(sec A + tan A)

Show that (i) sin^(8)A-cos^(8)A=(sin^(2)A-cos^(2)A)(1-2sin^(2)A.cos^(2)A) (ii) (1)/(sec A-tan A)-(1)/(cos A)=(1)/(cos A)-(1)/(sec A + tan A)

Prove the trigonometric identities: (1+cot A+tan A)(sin A-cos A)=(sec A)/(cos ec^(2)A)-(cos ecA)/(sec^(2)A)=sin A tan A-cot A cos A

(1 + cot A + tan A) (sin A-cos A) = (sec A) / (cos ec ^ (2) A) - (cos ecA) / (sec ^ (2) A)

(1 + cot A + tan A) (sin A-cos A) = (sec A) / (cos ec ^ (2) A) - (cos ecA) / (sec ^ (2) A)